Modernize the rest of the Find.* API (NFC)

This patch removes the size_t return value and the append parameter
from the remainder of the Find.* functions in LLDB's internal API. As
in the previous patches, this is motivated by the fact that these
parameters aren't really used, and in the case of the append parameter
were frequently implemented incorrectly.

Differential Revision: https://reviews.llvm.org/D69119

llvm-svn: 375160
diff --git a/lldb/source/Plugins/DynamicLoader/Hexagon-DYLD/HexagonDYLDRendezvous.cpp b/lldb/source/Plugins/DynamicLoader/Hexagon-DYLD/HexagonDYLDRendezvous.cpp
index a3f3c3d..f478881 100644
--- a/lldb/source/Plugins/DynamicLoader/Hexagon-DYLD/HexagonDYLDRendezvous.cpp
+++ b/lldb/source/Plugins/DynamicLoader/Hexagon-DYLD/HexagonDYLDRendezvous.cpp
@@ -290,8 +290,9 @@
   Target &target = m_process->GetTarget();
 
   SymbolContextList list;
-  if (!target.GetImages().FindSymbolsWithNameAndType(ConstString(name),
-                                                     eSymbolTypeAny, list))
+  target.GetImages().FindSymbolsWithNameAndType(ConstString(name),
+                                                eSymbolTypeAny, list);
+  if (list.IsEmpty())
     return false;
 
   Address address = list[0].symbol->GetAddress();
diff --git a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
index 9ec4ae0..f8a7c9d 100644
--- a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
+++ b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.cpp
@@ -977,15 +977,13 @@
   return thread_plan_sp;
 }
 
-size_t DynamicLoaderDarwin::FindEquivalentSymbols(
+void DynamicLoaderDarwin::FindEquivalentSymbols(
     lldb_private::Symbol *original_symbol, lldb_private::ModuleList &images,
     lldb_private::SymbolContextList &equivalent_symbols) {
   ConstString trampoline_name = original_symbol->GetMangled().GetName(
       original_symbol->GetLanguage(), Mangled::ePreferMangled);
   if (!trampoline_name)
-    return 0;
-
-  size_t initial_size = equivalent_symbols.GetSize();
+    return;
 
   static const char *resolver_name_regex = "(_gc|_non_gc|\\$[A-Za-z0-9\\$]+)$";
   std::string equivalent_regex_buf("^");
@@ -993,11 +991,9 @@
   equivalent_regex_buf.append(resolver_name_regex);
 
   RegularExpression equivalent_name_regex(equivalent_regex_buf);
-  const bool append = true;
   images.FindSymbolsMatchingRegExAndType(equivalent_name_regex, eSymbolTypeCode,
-                                         equivalent_symbols, append);
+                                         equivalent_symbols);
 
-  return equivalent_symbols.GetSize() - initial_size;
 }
 
 lldb::ModuleSP DynamicLoaderDarwin::GetPThreadLibraryModule() {
@@ -1008,8 +1004,8 @@
     module_spec.GetFileSpec().GetFilename().SetCString(
         "libsystem_pthread.dylib");
     ModuleList module_list;
-    if (m_process->GetTarget().GetImages().FindModules(module_spec,
-                                                       module_list)) {
+    m_process->GetTarget().GetImages().FindModules(module_spec, module_list);
+    if (!module_list.IsEmpty()) {
       if (module_list.GetSize() == 1) {
         module_sp = module_list.GetModuleAtIndex(0);
         if (module_sp)
diff --git a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
index f2c78d4..ea7a900 100644
--- a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
+++ b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderDarwin.h
@@ -41,7 +41,7 @@
   lldb::ThreadPlanSP GetStepThroughTrampolinePlan(lldb_private::Thread &thread,
                                                   bool stop_others) override;
 
-  size_t FindEquivalentSymbols(
+  void FindEquivalentSymbols(
       lldb_private::Symbol *original_symbol,
       lldb_private::ModuleList &module_list,
       lldb_private::SymbolContextList &equivalent_symbols) override;
diff --git a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
index 6baf1d5..7375993 100644
--- a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
+++ b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DYLDRendezvous.cpp
@@ -558,9 +558,10 @@
   Target &target = m_process->GetTarget();
 
   SymbolContextList list;
-  if (!target.GetImages().FindSymbolsWithNameAndType(ConstString(name),
-                                                     eSymbolTypeAny, list))
-    return false;
+  target.GetImages().FindSymbolsWithNameAndType(ConstString(name),
+                                                eSymbolTypeAny, list);
+  if (list.IsEmpty())
+  return false;
 
   Address address = list[0].symbol->GetAddress();
   addr_t addr = address.GetLoadAddress(&target);
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp
index b8cab4f..372c243 100644
--- a/lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp
+++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp
@@ -1228,7 +1228,6 @@
 
   const bool include_symbols = false;
   const bool include_inlines = false;
-  const bool append = false;
 
   std::string interface_name = interface_decl->getNameAsString();
 
@@ -1238,9 +1237,10 @@
     ms.Flush();
     ConstString instance_method_name(ms.GetString());
 
+    sc_list.Clear();
     m_target->GetImages().FindFunctions(
         instance_method_name, lldb::eFunctionNameTypeFull, include_symbols,
-        include_inlines, append, sc_list);
+        include_inlines, sc_list);
 
     if (sc_list.GetSize())
       break;
@@ -1250,9 +1250,10 @@
     ms.Flush();
     ConstString class_method_name(ms.GetString());
 
+    sc_list.Clear();
     m_target->GetImages().FindFunctions(
         class_method_name, lldb::eFunctionNameTypeFull, include_symbols,
-        include_inlines, append, sc_list);
+        include_inlines, sc_list);
 
     if (sc_list.GetSize())
       break;
@@ -1265,7 +1266,7 @@
 
     m_target->GetImages().FindFunctions(
         selector_name, lldb::eFunctionNameTypeSelector, include_symbols,
-        include_inlines, append, candidate_sc_list);
+        include_inlines, candidate_sc_list);
 
     for (uint32_t ci = 0, ce = candidate_sc_list.GetSize(); ci != ce; ++ci) {
       SymbolContext candidate_sc;
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
index c17fb0f..f4457fc 100644
--- a/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
+++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp
@@ -1216,14 +1216,12 @@
     }
 
     const bool include_inlines = false;
-    const bool append = false;
-
+    sc_list.Clear();
     if (namespace_decl && module_sp) {
       const bool include_symbols = false;
 
       module_sp->FindFunctions(name, &namespace_decl, eFunctionNameTypeBase,
-                               include_symbols, include_inlines, append,
-                               sc_list);
+                               include_symbols, include_inlines, sc_list);
     } else if (target && !namespace_decl) {
       const bool include_symbols = true;
 
@@ -1232,7 +1230,7 @@
 
       target->GetImages().FindFunctions(name, eFunctionNameTypeFull,
                                         include_symbols, include_inlines,
-                                        append, sc_list);
+                                        sc_list);
     }
 
     // If we found more than one function, see if we can use the frame's decl
diff --git a/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp b/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
index acaf991..fff4412 100644
--- a/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
+++ b/lldb/source/Plugins/JITLoader/GDB/JITLoaderGDB.cpp
@@ -458,8 +458,8 @@
   SymbolContextList target_symbols;
   Target &target = m_process->GetTarget();
 
-  if (!module_list.FindSymbolsWithNameAndType(name, symbol_type,
-                                              target_symbols))
+  module_list.FindSymbolsWithNameAndType(name, symbol_type, target_symbols);
+  if (target_symbols.IsEmpty())
     return LLDB_INVALID_ADDRESS;
 
   SymbolContext sym_ctx;
diff --git a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.cpp b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.cpp
index b392282..f380145 100644
--- a/lldb/source/Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/CPlusPlus/CPPLanguageRuntime.cpp
@@ -231,7 +231,7 @@
   SymbolContextList scl;
 
   target.GetImages().FindSymbolsMatchingRegExAndType(
-      RegularExpression{R"(^)" + func_to_match}, eSymbolTypeAny, scl, true);
+      RegularExpression{R"(^)" + func_to_match}, eSymbolTypeAny, scl);
 
   // Case 1,2 or 3
   if (scl.GetSize() >= 1) {
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
index 52ed362..8ca9ad7 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntime.cpp
@@ -223,11 +223,14 @@
     SymbolContextList contexts;
     SymbolContext context;
 
-    if ((!modules.FindSymbolsWithNameAndType(ConstString("_NSPrintForDebugger"),
-                                             eSymbolTypeCode, contexts)) &&
-        (!modules.FindSymbolsWithNameAndType(ConstString("_CFPrintForDebugger"),
-                                             eSymbolTypeCode, contexts)))
-      return nullptr;
+    modules.FindSymbolsWithNameAndType(ConstString("_NSPrintForDebugger"),
+                                        eSymbolTypeCode, contexts);
+    if (contexts.IsEmpty()) {
+      modules.FindSymbolsWithNameAndType(ConstString("_CFPrintForDebugger"),
+                                         eSymbolTypeCode, contexts);
+      if (contexts.IsEmpty())
+        return nullptr;
+    }
 
     contexts.GetContextAtIndex(0, context);
 
@@ -444,10 +447,12 @@
 
   SymbolContextList sc_list;
 
-  return target.GetImages().FindSymbolsWithNameAndType(
-             s_method_signature, eSymbolTypeCode, sc_list) ||
-         target.GetImages().FindSymbolsWithNameAndType(
-             s_arclite_method_signature, eSymbolTypeCode, sc_list);
+  target.GetImages().FindSymbolsWithNameAndType(s_method_signature,
+                                                eSymbolTypeCode, sc_list);
+  if (sc_list.IsEmpty())
+    target.GetImages().FindSymbolsWithNameAndType(s_arclite_method_signature,
+                                                  eSymbolTypeCode, sc_list);
+  return !sc_list.IsEmpty();
 }
 
 lldb::SearchFilterSP AppleObjCRuntime::CreateExceptionSearchFilter() {
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp
index d5a47d1..9bdbef3 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp
@@ -2640,8 +2640,9 @@
   std::function<lldb::addr_t(ConstString)> get_symbol =
       [this](ConstString sym) -> lldb::addr_t {
     SymbolContextList sc_list;
-    if (GetProcess()->GetTarget().GetImages().FindSymbolsWithNameAndType(
-            sym, lldb::eSymbolTypeData, sc_list) == 1) {
+    GetProcess()->GetTarget().GetImages().FindSymbolsWithNameAndType(
+        sym, lldb::eSymbolTypeData, sc_list);
+    if (sc_list.GetSize() == 1) {
       SymbolContext sc;
       sc_list.GetContextAtIndex(0, sc);
       if (sc.symbol)
diff --git a/lldb/source/Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.cpp b/lldb/source/Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.cpp
index 31aac72..87ae4c2 100644
--- a/lldb/source/Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.cpp
+++ b/lldb/source/Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.cpp
@@ -103,8 +103,8 @@
   const ModuleList &modules = m_process->GetTarget().GetImages();
 
   SymbolContextList sc_list;
-  const size_t matching_symbols =
-      modules.FindSymbolsWithNameAndType(name, eSymbolTypeObjCClass, sc_list);
+  modules.FindSymbolsWithNameAndType(name, eSymbolTypeObjCClass, sc_list);
+  const size_t matching_symbols = sc_list.GetSize();
 
   if (matching_symbols) {
     SymbolContext sc;
diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index fa80646..70e0997 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -5276,8 +5276,9 @@
       if (module_sp) {
         SymbolContextList contexts;
         SymbolContext context;
-        if (module_sp->FindSymbolsWithNameAndType(ConstString("start"),
-                                                  eSymbolTypeCode, contexts)) {
+        module_sp->FindSymbolsWithNameAndType(ConstString("start"),
+                                              eSymbolTypeCode, contexts);
+        if (contexts.GetSize()) {
           if (contexts.GetContextAtIndex(0, context))
             m_entry_point_address = context.symbol->GetAddress();
         }
diff --git a/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp b/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
index 7076872..93fc87d 100644
--- a/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
+++ b/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
@@ -364,9 +364,9 @@
   const char *dl_open_name = nullptr;
   Target &target = process->GetTarget();
   for (auto name: dl_open_names) {
-    if (target.GetImages().FindFunctionSymbols(ConstString(name),
-                                               eFunctionNameTypeFull,
-                                               matching_symbols)) {
+    target.GetImages().FindFunctionSymbols(
+        ConstString(name), eFunctionNameTypeFull, matching_symbols);
+    if (matching_symbols.GetSize()) {
        dl_open_name = name;
        break;
     }
diff --git a/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp b/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
index a018822..2ccbeac 100644
--- a/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
+++ b/lldb/source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
@@ -41,13 +41,13 @@
   if (thread == nullptr)
     return false;
 
-  const bool append = true;
   const bool include_symbols = true;
   const bool include_inlines = false;
   SymbolContextList sc_list;
-  const uint32_t count = process->GetTarget().GetImages().FindFunctions(
+  process->GetTarget().GetImages().FindFunctions(
       ConstString("mmap"), eFunctionNameTypeFull, include_symbols,
-      include_inlines, append, sc_list);
+      include_inlines, sc_list);
+  const uint32_t count = sc_list.GetSize();
   if (count > 0) {
     SymbolContext sc;
     if (sc_list.GetContextAtIndex(0, sc)) {
@@ -135,13 +135,13 @@
   if (thread == nullptr)
     return false;
 
-  const bool append = true;
   const bool include_symbols = true;
   const bool include_inlines = false;
   SymbolContextList sc_list;
-  const uint32_t count = process->GetTarget().GetImages().FindFunctions(
+  process->GetTarget().GetImages().FindFunctions(
       ConstString("munmap"), eFunctionNameTypeFull, include_symbols,
-      include_inlines, append, sc_list);
+      include_inlines, sc_list);
+  const uint32_t count = sc_list.GetSize();
   if (count > 0) {
     SymbolContext sc;
     if (sc_list.GetContextAtIndex(0, sc)) {
diff --git a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
index 02ba400..feb9f05 100644
--- a/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
+++ b/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
@@ -3834,8 +3834,9 @@
 
               addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
               lldb_private::SymbolContextList sc_list;
-              if (process->GetTarget().GetImages().FindSymbolsWithNameAndType(
-                      ConstString(symbol_name), eSymbolTypeAny, sc_list)) {
+              process->GetTarget().GetImages().FindSymbolsWithNameAndType(
+                  ConstString(symbol_name), eSymbolTypeAny, sc_list);
+              if (!sc_list.IsEmpty()) {
                 const size_t num_scs = sc_list.GetSize();
                 for (size_t sc_idx = 0;
                      sc_idx < num_scs &&
diff --git a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
index bed066f..f84cf0c 100644
--- a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
+++ b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
@@ -289,23 +289,17 @@
   return sc_list.GetSize() - old_size;
 }
 
-uint32_t SymbolFileBreakpad::FindFunctions(
+void SymbolFileBreakpad::FindFunctions(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
-    FunctionNameType name_type_mask, bool include_inlines, bool append,
+    FunctionNameType name_type_mask, bool include_inlines,
     SymbolContextList &sc_list) {
   // TODO
-  if (!append)
-    sc_list.Clear();
-  return sc_list.GetSize();
 }
 
-uint32_t SymbolFileBreakpad::FindFunctions(const RegularExpression &regex,
-                                           bool include_inlines, bool append,
-                                           SymbolContextList &sc_list) {
+void SymbolFileBreakpad::FindFunctions(const RegularExpression &regex,
+                                       bool include_inlines,
+                                       SymbolContextList &sc_list) {
   // TODO
-  if (!append)
-    sc_list.Clear();
-  return sc_list.GetSize();
 }
 
 void SymbolFileBreakpad::FindTypes(
diff --git a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.h b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.h
index 8906e4b..a10138c 100644
--- a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.h
+++ b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.h
@@ -70,12 +70,10 @@
 
   size_t ParseBlocksRecursive(Function &func) override { return 0; }
 
-  uint32_t FindGlobalVariables(ConstString name,
-                               const CompilerDeclContext *parent_decl_ctx,
-                               uint32_t max_matches,
-                               VariableList &variables) override {
-    return 0;
-  }
+  void FindGlobalVariables(ConstString name,
+                           const CompilerDeclContext *parent_decl_ctx,
+                           uint32_t max_matches,
+                           VariableList &variables) override {}
 
   size_t ParseVariablesForContext(const SymbolContext &sc) override {
     return 0;
@@ -100,14 +98,13 @@
   void GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
                 TypeList &type_list) override {}
 
-  uint32_t FindFunctions(ConstString name,
-                         const CompilerDeclContext *parent_decl_ctx,
-                         lldb::FunctionNameType name_type_mask,
-                         bool include_inlines, bool append,
-                         SymbolContextList &sc_list) override;
+  void FindFunctions(ConstString name,
+                     const CompilerDeclContext *parent_decl_ctx,
+                     lldb::FunctionNameType name_type_mask,
+                     bool include_inlines, SymbolContextList &sc_list) override;
 
-  uint32_t FindFunctions(const RegularExpression &regex, bool include_inlines,
-                         bool append, SymbolContextList &sc_list) override;
+  void FindFunctions(const RegularExpression &regex, bool include_inlines,
+                     SymbolContextList &sc_list) override;
 
   void FindTypes(ConstString name, const CompilerDeclContext *parent_decl_ctx,
                  uint32_t max_matches,
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
index 7d96e32..c982d59 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -2005,7 +2005,7 @@
   return false;
 }
 
-uint32_t SymbolFileDWARF::FindGlobalVariables(
+void SymbolFileDWARF::FindGlobalVariables(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches, VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
@@ -2020,11 +2020,11 @@
         max_matches);
 
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
 
   DWARFDebugInfo *info = DebugInfo();
-  if (info == nullptr)
-    return 0;
+  if (!info)
+    return;
 
   // Remember how many variables are in the list before we search.
   const uint32_t original_size = variables.GetSize();
@@ -2111,12 +2111,11 @@
         name.GetCString(), static_cast<const void *>(parent_decl_ctx),
         max_matches, num_matches);
   }
-  return num_matches;
 }
 
-uint32_t SymbolFileDWARF::FindGlobalVariables(const RegularExpression &regex,
-                                              uint32_t max_matches,
-                                              VariableList &variables) {
+void SymbolFileDWARF::FindGlobalVariables(const RegularExpression &regex,
+                                          uint32_t max_matches,
+                                          VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
 
@@ -2129,8 +2128,8 @@
   }
 
   DWARFDebugInfo *info = DebugInfo();
-  if (info == nullptr)
-    return 0;
+  if (!info)
+    return;
 
   // Remember how many variables are in the list before we search.
   const uint32_t original_size = variables.GetSize();
@@ -2163,9 +2162,6 @@
         m_index->ReportInvalidDIERef(die_ref, regex.GetText());
     }
   }
-
-  // Return the number of variable that were appended to the list
-  return variables.GetSize() - original_size;
 }
 
 bool SymbolFileDWARF::ResolveFunction(const DWARFDIE &orig_die,
@@ -2241,10 +2237,11 @@
   return false;
 }
 
-uint32_t SymbolFileDWARF::FindFunctions(
-    ConstString name, const CompilerDeclContext *parent_decl_ctx,
-    FunctionNameType name_type_mask, bool include_inlines, bool append,
-    SymbolContextList &sc_list) {
+void SymbolFileDWARF::FindFunctions(ConstString name,
+                                    const CompilerDeclContext *parent_decl_ctx,
+                                    FunctionNameType name_type_mask,
+                                    bool include_inlines,
+                                    SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat, "SymbolFileDWARF::FindFunctions (name = '%s')",
@@ -2259,21 +2256,16 @@
   if (log) {
     GetObjectFile()->GetModule()->LogMessage(
         log,
-        "SymbolFileDWARF::FindFunctions (name=\"%s\", "
-        "name_type_mask=0x%x, append=%u, sc_list)",
-        name.GetCString(), name_type_mask, append);
+        "SymbolFileDWARF::FindFunctions (name=\"%s\", name_type_mask=0x%x, sc_list)",
+        name.GetCString(), name_type_mask);
   }
 
-  // If we aren't appending the results to this list, then clear the list
-  if (!append)
-    sc_list.Clear();
-
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
 
   // If name is empty then we won't find anything.
   if (name.IsEmpty())
-    return 0;
+    return;
 
   // Remember how many sc_list are in the list before we search in case we are
   // appending the results to a variable list.
@@ -2300,17 +2292,15 @@
     GetObjectFile()->GetModule()->LogMessage(
         log,
         "SymbolFileDWARF::FindFunctions (name=\"%s\", "
-        "name_type_mask=0x%x, include_inlines=%d, append=%u, sc_list) => "
-        "%u",
-        name.GetCString(), name_type_mask, include_inlines, append,
+        "name_type_mask=0x%x, include_inlines=%d, sc_list) => %u",
+        name.GetCString(), name_type_mask, include_inlines,
         num_matches);
   }
-  return num_matches;
 }
 
-uint32_t SymbolFileDWARF::FindFunctions(const RegularExpression &regex,
-                                        bool include_inlines, bool append,
-                                        SymbolContextList &sc_list) {
+void SymbolFileDWARF::FindFunctions(const RegularExpression &regex,
+                                    bool include_inlines,
+                                    SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat, "SymbolFileDWARF::FindFunctions (regex = '%s')",
@@ -2320,22 +2310,13 @@
 
   if (log) {
     GetObjectFile()->GetModule()->LogMessage(
-        log,
-        "SymbolFileDWARF::FindFunctions (regex=\"%s\", append=%u, sc_list)",
-        regex.GetText().str().c_str(), append);
+        log, "SymbolFileDWARF::FindFunctions (regex=\"%s\", sc_list)",
+        regex.GetText().str().c_str());
   }
 
-  // If we aren't appending the results to this list, then clear the list
-  if (!append)
-    sc_list.Clear();
-
   DWARFDebugInfo *info = DebugInfo();
   if (!info)
-    return 0;
-
-  // Remember how many sc_list are in the list before we search in case we are
-  // appending the results to a variable list.
-  uint32_t original_size = sc_list.GetSize();
+    return;
 
   DIEArray offsets;
   m_index->GetFunctions(regex, offsets);
@@ -2350,9 +2331,6 @@
     if (resolved_dies.insert(die.GetDIE()).second)
       ResolveFunction(die, include_inlines, sc_list);
   }
-
-  // Return the number of variable that were appended to the list
-  return sc_list.GetSize() - original_size;
 }
 
 void SymbolFileDWARF::GetMangledNamesForFunction(
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
index 4f04d41..04cb11d 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -157,25 +157,25 @@
                        lldb::SymbolContextItem resolve_scope,
                        lldb_private::SymbolContextList &sc_list) override;
 
-  uint32_t
+  void
   FindGlobalVariables(lldb_private::ConstString name,
                       const lldb_private::CompilerDeclContext *parent_decl_ctx,
                       uint32_t max_matches,
                       lldb_private::VariableList &variables) override;
 
-  uint32_t FindGlobalVariables(const lldb_private::RegularExpression &regex,
-                               uint32_t max_matches,
-                               lldb_private::VariableList &variables) override;
+  void FindGlobalVariables(const lldb_private::RegularExpression &regex,
+                           uint32_t max_matches,
+                           lldb_private::VariableList &variables) override;
 
-  uint32_t
-  FindFunctions(lldb_private::ConstString name,
-                const lldb_private::CompilerDeclContext *parent_decl_ctx,
-                lldb::FunctionNameType name_type_mask, bool include_inlines,
-                bool append, lldb_private::SymbolContextList &sc_list) override;
+  void FindFunctions(lldb_private::ConstString name,
+                     const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                     lldb::FunctionNameType name_type_mask,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
 
-  uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
-                         bool include_inlines, bool append,
-                         lldb_private::SymbolContextList &sc_list) override;
+  void FindFunctions(const lldb_private::RegularExpression &regex,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
 
   void GetMangledNamesForFunction(
       const std::string &scope_qualified_name,
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
index c286dc9..a50d4e4 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
@@ -824,12 +824,11 @@
   return sc_list.GetSize() - initial;
 }
 
-uint32_t SymbolFileDWARFDebugMap::PrivateFindGlobalVariables(
+void SymbolFileDWARFDebugMap::PrivateFindGlobalVariables(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     const std::vector<uint32_t>
         &indexes, // Indexes into the symbol table that match "name"
     uint32_t max_matches, VariableList &variables) {
-  const uint32_t original_size = variables.GetSize();
   const size_t match_count = indexes.size();
   for (size_t i = 0; i < match_count; ++i) {
     uint32_t oso_idx;
@@ -838,29 +837,26 @@
     if (comp_unit_info) {
       SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
       if (oso_dwarf) {
-        if (oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
-                                           variables))
-          if (variables.GetSize() > max_matches)
-            break;
+        oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
+                                       variables);
+        if (variables.GetSize() > max_matches)
+          break;
       }
     }
   }
-  return variables.GetSize() - original_size;
 }
 
-uint32_t SymbolFileDWARFDebugMap::FindGlobalVariables(
+void SymbolFileDWARFDebugMap::FindGlobalVariables(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches, VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
-
-  // Remember how many variables are in the list before we search.
-  const uint32_t original_size = variables.GetSize();
-
   uint32_t total_matches = 0;
 
   ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-    const uint32_t oso_matches = oso_dwarf->FindGlobalVariables(
-        name, parent_decl_ctx, max_matches, variables);
+    const uint32_t old_size = variables.GetSize();
+    oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
+                                   variables);
+    const uint32_t oso_matches = variables.GetSize() - old_size;
     if (oso_matches > 0) {
       total_matches += oso_matches;
 
@@ -879,23 +875,18 @@
 
     return false;
   });
-
-  // Return the number of variable that were appended to the list
-  return variables.GetSize() - original_size;
 }
 
-uint32_t
-SymbolFileDWARFDebugMap::FindGlobalVariables(const RegularExpression &regex,
-                                             uint32_t max_matches,
-                                             VariableList &variables) {
+void SymbolFileDWARFDebugMap::FindGlobalVariables(
+    const RegularExpression &regex, uint32_t max_matches,
+    VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
-  // Remember how many variables are in the list before we search.
-  const uint32_t original_size = variables.GetSize();
-
   uint32_t total_matches = 0;
   ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
-    const uint32_t oso_matches =
-        oso_dwarf->FindGlobalVariables(regex, max_matches, variables);
+    const uint32_t old_size = variables.GetSize();
+    oso_dwarf->FindGlobalVariables(regex, max_matches, variables);
+
+    const uint32_t oso_matches = variables.GetSize() - old_size;
     if (oso_matches > 0) {
       total_matches += oso_matches;
 
@@ -914,9 +905,6 @@
 
     return false;
   });
-
-  // Return the number of variable that were appended to the list
-  return variables.GetSize() - original_size;
 }
 
 int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex(
@@ -1012,9 +1000,9 @@
   }
 }
 
-uint32_t SymbolFileDWARFDebugMap::FindFunctions(
+void SymbolFileDWARFDebugMap::FindFunctions(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
-    FunctionNameType name_type_mask, bool include_inlines, bool append,
+    FunctionNameType name_type_mask, bool include_inlines,
     SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
@@ -1022,52 +1010,37 @@
                      "SymbolFileDWARFDebugMap::FindFunctions (name = %s)",
                      name.GetCString());
 
-  uint32_t initial_size = 0;
-  if (append)
-    initial_size = sc_list.GetSize();
-  else
-    sc_list.Clear();
-
   ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
     uint32_t sc_idx = sc_list.GetSize();
-    if (oso_dwarf->FindFunctions(name, parent_decl_ctx, name_type_mask,
-                                 include_inlines, true, sc_list)) {
+    oso_dwarf->FindFunctions(name, parent_decl_ctx, name_type_mask,
+                             include_inlines, sc_list);
+    if (!sc_list.IsEmpty()) {
       RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list,
                                           sc_idx);
     }
     return false;
   });
-
-  return sc_list.GetSize() - initial_size;
 }
 
-uint32_t SymbolFileDWARFDebugMap::FindFunctions(const RegularExpression &regex,
-                                                bool include_inlines,
-                                                bool append,
-                                                SymbolContextList &sc_list) {
+void SymbolFileDWARFDebugMap::FindFunctions(const RegularExpression &regex,
+                                            bool include_inlines,
+                                            SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat,
                      "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')",
                      regex.GetText().str().c_str());
 
-  uint32_t initial_size = 0;
-  if (append)
-    initial_size = sc_list.GetSize();
-  else
-    sc_list.Clear();
-
   ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
     uint32_t sc_idx = sc_list.GetSize();
 
-    if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) {
+    oso_dwarf->FindFunctions(regex, include_inlines, sc_list);
+    if (!sc_list.IsEmpty()) {
       RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list,
                                           sc_idx);
     }
     return false;
   });
-
-  return sc_list.GetSize() - initial_size;
 }
 
 void SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope,
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
index 0643e6d..7adee1b 100644
--- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
@@ -92,22 +92,22 @@
                        bool check_inlines,
                        lldb::SymbolContextItem resolve_scope,
                        lldb_private::SymbolContextList &sc_list) override;
-  uint32_t
+  void
   FindGlobalVariables(lldb_private::ConstString name,
                       const lldb_private::CompilerDeclContext *parent_decl_ctx,
                       uint32_t max_matches,
                       lldb_private::VariableList &variables) override;
-  uint32_t FindGlobalVariables(const lldb_private::RegularExpression &regex,
-                               uint32_t max_matches,
-                               lldb_private::VariableList &variables) override;
-  uint32_t
-  FindFunctions(lldb_private::ConstString name,
-                const lldb_private::CompilerDeclContext *parent_decl_ctx,
-                lldb::FunctionNameType name_type_mask, bool include_inlines,
-                bool append, lldb_private::SymbolContextList &sc_list) override;
-  uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
-                         bool include_inlines, bool append,
-                         lldb_private::SymbolContextList &sc_list) override;
+  void FindGlobalVariables(const lldb_private::RegularExpression &regex,
+                           uint32_t max_matches,
+                           lldb_private::VariableList &variables) override;
+  void FindFunctions(lldb_private::ConstString name,
+                     const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                     lldb::FunctionNameType name_type_mask,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
+  void FindFunctions(const lldb_private::RegularExpression &regex,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
   void
   FindTypes(lldb_private::ConstString name,
             const lldb_private::CompilerDeclContext *parent_decl_ctx,
@@ -236,7 +236,7 @@
   static int SymbolContainsSymbolWithID(lldb::user_id_t *symbol_idx_ptr,
                                         const CompileUnitInfo *comp_unit_info);
 
-  uint32_t PrivateFindGlobalVariables(
+  void PrivateFindGlobalVariables(
       lldb_private::ConstString name,
       const lldb_private::CompilerDeclContext *parent_decl_ctx,
       const std::vector<uint32_t> &name_symbol_indexes, uint32_t max_matches,
diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
index bb2cfc2..33b8da3 100644
--- a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
@@ -1179,7 +1179,7 @@
 
 void SymbolFileNativePDB::DumpClangAST(Stream &s) { m_ast->Dump(s); }
 
-uint32_t SymbolFileNativePDB::FindGlobalVariables(
+void SymbolFileNativePDB::FindGlobalVariables(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches, VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
@@ -1204,17 +1204,16 @@
       continue;
     }
   }
-  return variables.GetSize();
 }
 
-uint32_t SymbolFileNativePDB::FindFunctions(
+void SymbolFileNativePDB::FindFunctions(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
-    FunctionNameType name_type_mask, bool include_inlines, bool append,
+    FunctionNameType name_type_mask, bool include_inlines,
     SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   // For now we only support lookup by method name.
   if (!(name_type_mask & eFunctionNameTypeMethod))
-    return 0;
+    return;
 
   using SymbolAndOffset = std::pair<uint32_t, llvm::codeview::CVSymbol>;
 
@@ -1239,15 +1238,11 @@
 
     sc_list.Append(sc);
   }
-
-  return sc_list.GetSize();
 }
 
-uint32_t SymbolFileNativePDB::FindFunctions(const RegularExpression &regex,
-                                            bool include_inlines, bool append,
-                                            SymbolContextList &sc_list) {
-  return 0;
-}
+void SymbolFileNativePDB::FindFunctions(const RegularExpression &regex,
+                                        bool include_inlines,
+                                        SymbolContextList &sc_list) {}
 
 void SymbolFileNativePDB::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h
index 79908a6..ca7de0e 100644
--- a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h
+++ b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h
@@ -88,10 +88,10 @@
 
   size_t ParseBlocksRecursive(Function &func) override;
 
-  uint32_t FindGlobalVariables(ConstString name,
-                               const CompilerDeclContext *parent_decl_ctx,
-                               uint32_t max_matches,
-                               VariableList &variables) override;
+  void FindGlobalVariables(ConstString name,
+                           const CompilerDeclContext *parent_decl_ctx,
+                           uint32_t max_matches,
+                           VariableList &variables) override;
 
   size_t ParseVariablesForContext(const SymbolContext &sc) override;
 
@@ -117,14 +117,13 @@
   void GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
                 TypeList &type_list) override;
 
-  uint32_t FindFunctions(ConstString name,
-                         const CompilerDeclContext *parent_decl_ctx,
-                         lldb::FunctionNameType name_type_mask,
-                         bool include_inlines, bool append,
-                         SymbolContextList &sc_list) override;
+  void FindFunctions(ConstString name,
+                     const CompilerDeclContext *parent_decl_ctx,
+                     lldb::FunctionNameType name_type_mask,
+                     bool include_inlines, SymbolContextList &sc_list) override;
 
-  uint32_t FindFunctions(const RegularExpression &regex, bool include_inlines,
-                         bool append, SymbolContextList &sc_list) override;
+  void FindFunctions(const RegularExpression &regex, bool include_inlines,
+                     SymbolContextList &sc_list) override;
 
   void FindTypes(ConstString name, const CompilerDeclContext *parent_decl_ctx,
                  uint32_t max_matches,
diff --git a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
index 5d74b25..0dac6fd 100644
--- a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
+++ b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
@@ -1097,19 +1097,19 @@
   return num_added;
 }
 
-uint32_t SymbolFilePDB::FindGlobalVariables(
+void SymbolFilePDB::FindGlobalVariables(
     lldb_private::ConstString name,
     const lldb_private::CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches, lldb_private::VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
   if (name.IsEmpty())
-    return 0;
+    return;
 
   auto results = m_global_scope_up->findAllChildren<PDBSymbolData>();
   if (!results)
-    return 0;
+    return;
 
   uint32_t matches = 0;
   size_t old_size = variables.GetSize();
@@ -1138,20 +1138,17 @@
     ParseVariables(sc, *pdb_data, &variables);
     matches = variables.GetSize() - old_size;
   }
-
-  return matches;
 }
 
-uint32_t
-SymbolFilePDB::FindGlobalVariables(const lldb_private::RegularExpression &regex,
-                                   uint32_t max_matches,
-                                   lldb_private::VariableList &variables) {
+void SymbolFilePDB::FindGlobalVariables(
+    const lldb_private::RegularExpression &regex, uint32_t max_matches,
+    lldb_private::VariableList &variables) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   if (!regex.IsValid())
-    return 0;
+    return;
   auto results = m_global_scope_up->findAllChildren<PDBSymbolData>();
   if (!results)
-    return 0;
+    return;
 
   uint32_t matches = 0;
   size_t old_size = variables.GetSize();
@@ -1176,8 +1173,6 @@
     ParseVariables(sc, *pdb_data, &variables);
     matches = variables.GetSize() - old_size;
   }
-
-  return matches;
 }
 
 bool SymbolFilePDB::ResolveFunction(const llvm::pdb::PDBSymbolFunc &pdb_func,
@@ -1299,24 +1294,21 @@
   m_func_base_names.SizeToFit();
 }
 
-uint32_t SymbolFilePDB::FindFunctions(
+void SymbolFilePDB::FindFunctions(
     lldb_private::ConstString name,
     const lldb_private::CompilerDeclContext *parent_decl_ctx,
-    FunctionNameType name_type_mask, bool include_inlines, bool append,
+    FunctionNameType name_type_mask, bool include_inlines,
     lldb_private::SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
-  if (!append)
-    sc_list.Clear();
   lldbassert((name_type_mask & eFunctionNameTypeAuto) == 0);
 
   if (name_type_mask == eFunctionNameTypeNone)
-    return 0;
+    return;
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
   if (name.IsEmpty())
-    return 0;
+    return;
 
-  auto old_size = sc_list.GetSize();
   if (name_type_mask & eFunctionNameTypeFull ||
       name_type_mask & eFunctionNameTypeBase ||
       name_type_mask & eFunctionNameTypeMethod) {
@@ -1346,25 +1338,19 @@
       ResolveFn(m_func_base_names);
       ResolveFn(m_func_method_names);
     }
-    if (name_type_mask & eFunctionNameTypeBase) {
+    if (name_type_mask & eFunctionNameTypeBase)
       ResolveFn(m_func_base_names);
-    }
-    if (name_type_mask & eFunctionNameTypeMethod) {
+    if (name_type_mask & eFunctionNameTypeMethod)
       ResolveFn(m_func_method_names);
-    }
   }
-  return sc_list.GetSize() - old_size;
 }
 
-uint32_t
-SymbolFilePDB::FindFunctions(const lldb_private::RegularExpression &regex,
-                             bool include_inlines, bool append,
-                             lldb_private::SymbolContextList &sc_list) {
+void SymbolFilePDB::FindFunctions(const lldb_private::RegularExpression &regex,
+                                  bool include_inlines,
+                                  lldb_private::SymbolContextList &sc_list) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
-  if (!append)
-    sc_list.Clear();
   if (!regex.IsValid())
-    return 0;
+    return;
 
   auto old_size = sc_list.GetSize();
   CacheFunctionNames();
@@ -1383,8 +1369,6 @@
   };
   ResolveFn(m_func_full_names);
   ResolveFn(m_func_base_names);
-
-  return sc_list.GetSize() - old_size;
 }
 
 void SymbolFilePDB::GetMangledNamesForFunction(
diff --git a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.h b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.h
index 1fdacf0..df717bb 100644
--- a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.h
+++ b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.h
@@ -99,25 +99,25 @@
                        lldb::SymbolContextItem resolve_scope,
                        lldb_private::SymbolContextList &sc_list) override;
 
-  uint32_t
+  void
   FindGlobalVariables(lldb_private::ConstString name,
                       const lldb_private::CompilerDeclContext *parent_decl_ctx,
                       uint32_t max_matches,
                       lldb_private::VariableList &variables) override;
 
-  uint32_t FindGlobalVariables(const lldb_private::RegularExpression &regex,
-                               uint32_t max_matches,
-                               lldb_private::VariableList &variables) override;
+  void FindGlobalVariables(const lldb_private::RegularExpression &regex,
+                           uint32_t max_matches,
+                           lldb_private::VariableList &variables) override;
 
-  uint32_t
-  FindFunctions(lldb_private::ConstString name,
-                const lldb_private::CompilerDeclContext *parent_decl_ctx,
-                lldb::FunctionNameType name_type_mask, bool include_inlines,
-                bool append, lldb_private::SymbolContextList &sc_list) override;
+  void FindFunctions(lldb_private::ConstString name,
+                     const lldb_private::CompilerDeclContext *parent_decl_ctx,
+                     lldb::FunctionNameType name_type_mask,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
 
-  uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
-                         bool include_inlines, bool append,
-                         lldb_private::SymbolContextList &sc_list) override;
+  void FindFunctions(const lldb_private::RegularExpression &regex,
+                     bool include_inlines,
+                     lldb_private::SymbolContextList &sc_list) override;
 
   void GetMangledNamesForFunction(
       const std::string &scope_qualified_name,
diff --git a/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp b/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp
index 4e384bd..69e59bc 100644
--- a/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp
+++ b/lldb/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp
@@ -579,9 +579,9 @@
   static ConstString introspection_dispatch_queue_info_version(
       "__introspection_dispatch_queue_info_version");
   SymbolContextList sc_list;
-  if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
-          introspection_dispatch_queue_info_version, eSymbolTypeData, sc_list) >
-      0) {
+  m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
+      introspection_dispatch_queue_info_version, eSymbolTypeData, sc_list);
+  if (!sc_list.IsEmpty()) {
     SymbolContext sc;
     sc_list.GetContextAtIndex(0, sc);
     AddressRange addr_range;
@@ -593,9 +593,9 @@
 
   static ConstString introspection_dispatch_queue_info_data_offset(
       "__introspection_dispatch_queue_info_data_offset");
-  if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
-          introspection_dispatch_queue_info_data_offset, eSymbolTypeData,
-          sc_list) > 0) {
+  m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
+      introspection_dispatch_queue_info_data_offset, eSymbolTypeData, sc_list);
+  if (!sc_list.IsEmpty()) {
     SymbolContext sc;
     sc_list.GetContextAtIndex(0, sc);
     AddressRange addr_range;
@@ -607,9 +607,9 @@
 
   static ConstString introspection_dispatch_item_info_version(
       "__introspection_dispatch_item_info_version");
-  if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
-          introspection_dispatch_item_info_version, eSymbolTypeData, sc_list) >
-      0) {
+  m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
+      introspection_dispatch_item_info_version, eSymbolTypeData, sc_list);
+  if (!sc_list.IsEmpty()) {
     SymbolContext sc;
     sc_list.GetContextAtIndex(0, sc);
     AddressRange addr_range;
@@ -621,9 +621,9 @@
 
   static ConstString introspection_dispatch_item_info_data_offset(
       "__introspection_dispatch_item_info_data_offset");
-  if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
-          introspection_dispatch_item_info_data_offset, eSymbolTypeData,
-          sc_list) > 0) {
+  m_process->GetTarget().GetImages().FindSymbolsWithNameAndType(
+      introspection_dispatch_item_info_data_offset, eSymbolTypeData, sc_list);
+  if (!sc_list.IsEmpty()) {
     SymbolContext sc;
     sc_list.GetContextAtIndex(0, sc);
     AddressRange addr_range;