[include-fixer] Rename XrefsDB to SymbolIndex.

It's not really containing xrefs so the name didn't fit. No functional change.

llvm-svn: 269403
diff --git a/clang-tools-extra/include-fixer/CMakeLists.txt b/clang-tools-extra/include-fixer/CMakeLists.txt
index c95e2fd..cfabe28 100644
--- a/clang-tools-extra/include-fixer/CMakeLists.txt
+++ b/clang-tools-extra/include-fixer/CMakeLists.txt
@@ -4,9 +4,9 @@
 
 add_clang_library(clangIncludeFixer
   IncludeFixer.cpp
-  InMemoryXrefsDB.cpp
-  XrefsDBManager.cpp
-  YamlXrefsDB.cpp
+  InMemorySymbolIndex.cpp
+  SymbolIndexManager.cpp
+  YamlSymbolIndex.cpp
 
   LINK_LIBS
   clangAST
diff --git a/clang-tools-extra/include-fixer/InMemoryXrefsDB.cpp b/clang-tools-extra/include-fixer/InMemorySymbolIndex.cpp
similarity index 85%
rename from clang-tools-extra/include-fixer/InMemoryXrefsDB.cpp
rename to clang-tools-extra/include-fixer/InMemorySymbolIndex.cpp
index 4db4c71..388bab2 100644
--- a/clang-tools-extra/include-fixer/InMemoryXrefsDB.cpp
+++ b/clang-tools-extra/include-fixer/InMemorySymbolIndex.cpp
@@ -1,4 +1,4 @@
-//===-- InMemoryXrefsDB.cpp -----------------------------------------------===//
+//===-- InMemorySymbolIndex.cpp--------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,14 +7,14 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "InMemoryXrefsDB.h"
+#include "InMemorySymbolIndex.h"
 
 using clang::find_all_symbols::SymbolInfo;
 
 namespace clang {
 namespace include_fixer {
 
-InMemoryXrefsDB::InMemoryXrefsDB(
+InMemorySymbolIndex::InMemorySymbolIndex(
     const std::map<std::string, std::vector<std::string>> &LookupTable) {
   for (const auto &Entry : LookupTable) {
     llvm::StringRef Identifier(Entry.first);
@@ -35,7 +35,8 @@
   }
 }
 
-std::vector<SymbolInfo> InMemoryXrefsDB::search(llvm::StringRef Identifier) {
+std::vector<SymbolInfo>
+InMemorySymbolIndex::search(llvm::StringRef Identifier) {
   auto I = LookupTable.find(Identifier);
   if (I != LookupTable.end())
     return I->second;
diff --git a/clang-tools-extra/include-fixer/InMemoryXrefsDB.h b/clang-tools-extra/include-fixer/InMemorySymbolIndex.h
similarity index 67%
rename from clang-tools-extra/include-fixer/InMemoryXrefsDB.h
rename to clang-tools-extra/include-fixer/InMemorySymbolIndex.h
index cdb1a95..c789e04 100644
--- a/clang-tools-extra/include-fixer/InMemoryXrefsDB.h
+++ b/clang-tools-extra/include-fixer/InMemorySymbolIndex.h
@@ -1,4 +1,4 @@
-//===-- InMemoryXrefsDB.h ---------------------------------------*- C++ -*-===//
+//===-- InMemorySymbolIndex.h -----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,10 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 //
-#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYXREFSDB_H
-#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYXREFSDB_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYSYMBOLINDEX_H
+#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYSYMBOLINDEX_H
 
-#include "XrefsDB.h"
+#include "SymbolIndex.h"
 #include <map>
 #include <string>
 #include <vector>
@@ -19,9 +19,9 @@
 namespace include_fixer {
 
 /// Xref database with fixed content.
-class InMemoryXrefsDB : public XrefsDB {
+class InMemorySymbolIndex : public SymbolIndex {
 public:
-  InMemoryXrefsDB(
+  InMemorySymbolIndex(
       const std::map<std::string, std::vector<std::string>> &LookupTable);
 
   std::vector<clang::find_all_symbols::SymbolInfo>
@@ -35,4 +35,4 @@
 } // namespace include_fixer
 } // namespace clang
 
-#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYXREFSDB_H
+#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INMEMORYSYMBOLINDEX_H
diff --git a/clang-tools-extra/include-fixer/IncludeFixer.cpp b/clang-tools-extra/include-fixer/IncludeFixer.cpp
index f2a40ba..cc99f65 100644
--- a/clang-tools-extra/include-fixer/IncludeFixer.cpp
+++ b/clang-tools-extra/include-fixer/IncludeFixer.cpp
@@ -58,8 +58,9 @@
 class Action : public clang::ASTFrontendAction,
                public clang::ExternalSemaSource {
 public:
-  explicit Action(XrefsDBManager &XrefsDBMgr, bool MinimizeIncludePaths)
-      : XrefsDBMgr(XrefsDBMgr), MinimizeIncludePaths(MinimizeIncludePaths) {}
+  explicit Action(SymbolIndexManager &SymbolIndexMgr, bool MinimizeIncludePaths)
+      : SymbolIndexMgr(SymbolIndexMgr),
+        MinimizeIncludePaths(MinimizeIncludePaths) {}
 
   std::unique_ptr<clang::ASTConsumer>
   CreateASTConsumer(clang::CompilerInstance &Compiler,
@@ -246,7 +247,7 @@
     DEBUG(llvm::dbgs() << " ...");
 
     std::string error_text;
-    auto SearchReply = XrefsDBMgr.search(Query);
+    auto SearchReply = SymbolIndexMgr.search(Query);
     DEBUG(llvm::dbgs() << SearchReply.size() << " replies\n");
     if (SearchReply.empty())
       return clang::TypoCorrection();
@@ -262,7 +263,7 @@
   }
 
   /// The client to use to find cross-references.
-  XrefsDBManager &XrefsDBMgr;
+  SymbolIndexManager &SymbolIndexMgr;
 
   // Remeber things we looked up to avoid querying things twice.
   llvm::StringSet<> SeenQueries;
@@ -328,10 +329,10 @@
 } // namespace
 
 IncludeFixerActionFactory::IncludeFixerActionFactory(
-    XrefsDBManager &XrefsDBMgr,
+    SymbolIndexManager &SymbolIndexMgr,
     std::vector<clang::tooling::Replacement> &Replacements,
     bool MinimizeIncludePaths)
-    : XrefsDBMgr(XrefsDBMgr), Replacements(Replacements),
+    : SymbolIndexMgr(SymbolIndexMgr), Replacements(Replacements),
       MinimizeIncludePaths(MinimizeIncludePaths) {}
 
 IncludeFixerActionFactory::~IncludeFixerActionFactory() = default;
@@ -355,7 +356,7 @@
 
   // Run the parser, gather missing includes.
   auto ScopedToolAction =
-      llvm::make_unique<Action>(XrefsDBMgr, MinimizeIncludePaths);
+      llvm::make_unique<Action>(SymbolIndexMgr, MinimizeIncludePaths);
   Compiler.ExecuteAction(*ScopedToolAction);
 
   // Generate replacements.
diff --git a/clang-tools-extra/include-fixer/IncludeFixer.h b/clang-tools-extra/include-fixer/IncludeFixer.h
index 46a6624..d9a5cad 100644
--- a/clang-tools-extra/include-fixer/IncludeFixer.h
+++ b/clang-tools-extra/include-fixer/IncludeFixer.h
@@ -10,7 +10,7 @@
 #ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INCLUDEFIXER_H
 #define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_INCLUDEFIXER_H
 
-#include "XrefsDBManager.h"
+#include "SymbolIndexManager.h"
 #include "clang/Tooling/Core/Replacement.h"
 #include "clang/Tooling/Tooling.h"
 #include <memory>
@@ -27,11 +27,11 @@
 
 class IncludeFixerActionFactory : public clang::tooling::ToolAction {
 public:
-  /// \param XrefsDBMgr A source for matching symbols to header files.
+  /// \param SymbolIndexMgr A source for matching symbols to header files.
   /// \param Replacements Storage for the output of the fixer.
   /// \param MinimizeIncludePaths whether inserted include paths are optimized.
   IncludeFixerActionFactory(
-      XrefsDBManager &XrefsDBMgr,
+      SymbolIndexManager &SymbolIndexMgr,
       std::vector<clang::tooling::Replacement> &Replacements,
       bool MinimizeIncludePaths = true);
   ~IncludeFixerActionFactory() override;
@@ -44,7 +44,7 @@
 
 private:
   /// The client to use to find cross-references.
-  XrefsDBManager &XrefsDBMgr;
+  SymbolIndexManager &SymbolIndexMgr;
 
   /// Replacements are written here.
   std::vector<clang::tooling::Replacement> &Replacements;
diff --git a/clang-tools-extra/include-fixer/XrefsDB.h b/clang-tools-extra/include-fixer/SymbolIndex.h
similarity index 76%
rename from clang-tools-extra/include-fixer/XrefsDB.h
rename to clang-tools-extra/include-fixer/SymbolIndex.h
index 96ed8fe..7a84f6b 100644
--- a/clang-tools-extra/include-fixer/XrefsDB.h
+++ b/clang-tools-extra/include-fixer/SymbolIndex.h
@@ -1,4 +1,4 @@
-//===-- XrefsDB.h - Interface for symbol-header matching --------*- C++ -*-===//
+//===-- SymbolIndex.h - Interface for symbol-header matching ----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_XREFSDB_H
-#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_XREFSDB_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_SYMBOLINDEX_H
+#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_SYMBOLINDEX_H
 
 #include "find-all-symbols/SymbolInfo.h"
 #include "llvm/ADT/StringRef.h"
@@ -19,9 +19,9 @@
 
 /// This class provides an interface for finding all `SymbolInfo`s corresponding
 /// to a symbol name from a symbol database.
-class XrefsDB {
+class SymbolIndex {
 public:
-  virtual ~XrefsDB() = default;
+  virtual ~SymbolIndex() = default;
 
   /// Search for all `SymbolInfo`s corresponding to an identifier.
   /// \param Identifier The unqualified identifier being searched for.
@@ -35,4 +35,4 @@
 } // namespace include_fixer
 } // namespace clang
 
-#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_XREFSDB_H
+#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_SYMBOLINDEX_H
diff --git a/clang-tools-extra/include-fixer/XrefsDBManager.cpp b/clang-tools-extra/include-fixer/SymbolIndexManager.cpp
similarity index 91%
rename from clang-tools-extra/include-fixer/XrefsDBManager.cpp
rename to clang-tools-extra/include-fixer/SymbolIndexManager.cpp
index 90f6a80..4d76a86 100644
--- a/clang-tools-extra/include-fixer/XrefsDBManager.cpp
+++ b/clang-tools-extra/include-fixer/SymbolIndexManager.cpp
@@ -1,4 +1,4 @@
-//===-- XrefsDBManager.cpp - Managing multiple XrefsDBs ---------*- C++ -*-===//
+//===-- SymbolIndexManager.cpp - Managing multiple SymbolIndices-*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "XrefsDBManager.h"
+#include "SymbolIndexManager.h"
 #include "find-all-symbols/SymbolInfo.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Debug.h"
@@ -18,14 +18,14 @@
 namespace include_fixer {
 
 std::vector<std::string>
-XrefsDBManager::search(llvm::StringRef Identifier) const {
+SymbolIndexManager::search(llvm::StringRef Identifier) const {
   // The identifier may be fully qualified, so split it and get all the context
   // names.
   llvm::SmallVector<llvm::StringRef, 8> Names;
   Identifier.split(Names, "::");
 
   std::vector<clang::find_all_symbols::SymbolInfo> Symbols;
-  for (const auto &DB : XrefsDBs) {
+  for (const auto &DB : SymbolIndices) {
     auto Res = DB->search(Names.back().str());
     Symbols.insert(Symbols.end(), Res.begin(), Res.end());
   }
diff --git a/clang-tools-extra/include-fixer/XrefsDBManager.h b/clang-tools-extra/include-fixer/SymbolIndexManager.h
similarity index 69%
rename from clang-tools-extra/include-fixer/XrefsDBManager.h
rename to clang-tools-extra/include-fixer/SymbolIndexManager.h
index 11164fe..ff4d970 100644
--- a/clang-tools-extra/include-fixer/XrefsDBManager.h
+++ b/clang-tools-extra/include-fixer/SymbolIndexManager.h
@@ -1,4 +1,4 @@
-//===-- XrefsDBManager.h - Managing multiple XrefsDBs -----------*- C++ -*-===//
+//===-- SymbolIndexManager.h - Managing multiple SymbolIndices --*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,10 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_XREFSDBMANAGER_H
-#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_XREFSDBMANAGER_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_SYMBOLINDEXMANAGER_H
+#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_SYMBOLINDEXMANAGER_H
 
-#include "XrefsDB.h"
+#include "SymbolIndex.h"
 #include "llvm/ADT/StringRef.h"
 
 namespace clang {
@@ -18,10 +18,10 @@
 
 /// This class provides an interface for finding the header files corresponding
 /// to an indentifier in the source code from multiple symbol databases.
-class XrefsDBManager {
+class SymbolIndexManager {
 public:
-  void addXrefsDB(std::unique_ptr<XrefsDB> DB) {
-    XrefsDBs.push_back(std::move(DB));
+  void addSymbolIndex(std::unique_ptr<SymbolIndex> DB) {
+    SymbolIndices.push_back(std::move(DB));
   }
 
   /// Search for header files to be included for an identifier.
@@ -32,11 +32,11 @@
   // FIXME: Expose the type name so we can also insert using declarations (or
   // fix the usage)
   // FIXME: Move mapping from SymbolInfo to headers out of
-  // XrefsDBManager::search and return SymbolInfos instead of header paths.
+  // SymbolIndexManager::search and return SymbolInfos instead of header paths.
   std::vector<std::string> search(llvm::StringRef Identifier) const;
 
 private:
-  std::vector<std::unique_ptr<XrefsDB>> XrefsDBs;
+  std::vector<std::unique_ptr<SymbolIndex>> SymbolIndices;
 };
 
 } // namespace include_fixer
diff --git a/clang-tools-extra/include-fixer/YamlXrefsDB.cpp b/clang-tools-extra/include-fixer/YamlSymbolIndex.cpp
similarity index 71%
rename from clang-tools-extra/include-fixer/YamlXrefsDB.cpp
rename to clang-tools-extra/include-fixer/YamlSymbolIndex.cpp
index e0ab4e5..82517af 100644
--- a/clang-tools-extra/include-fixer/YamlXrefsDB.cpp
+++ b/clang-tools-extra/include-fixer/YamlSymbolIndex.cpp
@@ -1,4 +1,4 @@
-//===-- YamlXrefsDB.cpp ---------------------------------------------------===//
+//===-- YamlSymbolIndex.cpp -----------------------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "YamlXrefsDB.h"
+#include "YamlSymbolIndex.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/FileSystem.h"
@@ -21,20 +21,20 @@
 namespace clang {
 namespace include_fixer {
 
-llvm::ErrorOr<std::unique_ptr<YamlXrefsDB>>
-YamlXrefsDB::createFromFile(llvm::StringRef FilePath) {
+llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
+YamlSymbolIndex::createFromFile(llvm::StringRef FilePath) {
   auto Buffer = llvm::MemoryBuffer::getFile(FilePath);
   if (!Buffer)
     return Buffer.getError();
 
-  return std::unique_ptr<YamlXrefsDB>(
-      new YamlXrefsDB(clang::find_all_symbols::ReadSymbolInfosFromYAML(
+  return std::unique_ptr<YamlSymbolIndex>(
+      new YamlSymbolIndex(clang::find_all_symbols::ReadSymbolInfosFromYAML(
           Buffer.get()->getBuffer())));
 }
 
-llvm::ErrorOr<std::unique_ptr<YamlXrefsDB>>
-YamlXrefsDB::createFromDirectory(llvm::StringRef Directory,
-                                 llvm::StringRef Name) {
+llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
+YamlSymbolIndex::createFromDirectory(llvm::StringRef Directory,
+                                     llvm::StringRef Name) {
   // Walk upwards from Directory, looking for files.
   for (llvm::SmallString<128> PathStorage = Directory; !Directory.empty();
        Directory = llvm::sys::path::parent_path(Directory)) {
@@ -47,7 +47,7 @@
   return llvm::make_error_code(llvm::errc::no_such_file_or_directory);
 }
 
-std::vector<SymbolInfo> YamlXrefsDB::search(llvm::StringRef Identifier) {
+std::vector<SymbolInfo> YamlSymbolIndex::search(llvm::StringRef Identifier) {
   std::vector<SymbolInfo> Results;
   for (const auto &Symbol : Symbols) {
     if (Symbol.getName() == Identifier)
diff --git a/clang-tools-extra/include-fixer/YamlXrefsDB.h b/clang-tools-extra/include-fixer/YamlSymbolIndex.h
similarity index 64%
rename from clang-tools-extra/include-fixer/YamlXrefsDB.h
rename to clang-tools-extra/include-fixer/YamlSymbolIndex.h
index 9901431..57c04da 100644
--- a/clang-tools-extra/include-fixer/YamlXrefsDB.h
+++ b/clang-tools-extra/include-fixer/YamlSymbolIndex.h
@@ -1,4 +1,4 @@
-//===-- YamlXrefsDB.h -------------------------------------------*- C++ -*-===//
+//===-- YamlSymbolIndex.h ---------------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,10 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLXREFSDB_H
-#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLXREFSDB_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLSYMBOLINDEX_H
+#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLSYMBOLINDEX_H
 
-#include "XrefsDB.h"
+#include "SymbolIndex.h"
 #include "find-all-symbols/SymbolInfo.h"
 #include "llvm/Support/ErrorOr.h"
 #include <map>
@@ -20,20 +20,21 @@
 namespace include_fixer {
 
 /// Yaml format database.
-class YamlXrefsDB : public XrefsDB {
+class YamlSymbolIndex : public SymbolIndex {
 public:
   /// Create a new Yaml db from a file.
-  static llvm::ErrorOr<std::unique_ptr<YamlXrefsDB>>
+  static llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
   createFromFile(llvm::StringRef FilePath);
   /// Look for a file called \c Name in \c Directory and all parent directories.
-  static llvm::ErrorOr<std::unique_ptr<YamlXrefsDB>>
+  static llvm::ErrorOr<std::unique_ptr<YamlSymbolIndex>>
   createFromDirectory(llvm::StringRef Directory, llvm::StringRef Name);
 
   std::vector<clang::find_all_symbols::SymbolInfo>
   search(llvm::StringRef Identifier) override;
 
 private:
-  explicit YamlXrefsDB(std::vector<clang::find_all_symbols::SymbolInfo> Symbols)
+  explicit YamlSymbolIndex(
+      std::vector<clang::find_all_symbols::SymbolInfo> Symbols)
       : Symbols(std::move(Symbols)) {}
 
   std::vector<clang::find_all_symbols::SymbolInfo> Symbols;
@@ -42,4 +43,4 @@
 } // namespace include_fixer
 } // namespace clang
 
-#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLXREFSDB_H
+#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_YAMLSYMBOLINDEX_H
diff --git a/clang-tools-extra/include-fixer/find-all-symbols/SymbolInfo.h b/clang-tools-extra/include-fixer/find-all-symbols/SymbolInfo.h
index f831aa1..ff5cac1 100644
--- a/clang-tools-extra/include-fixer/find-all-symbols/SymbolInfo.h
+++ b/clang-tools-extra/include-fixer/find-all-symbols/SymbolInfo.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOL_INFO_H
-#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOL_INFO_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOLINFO_H
+#define LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOLINFO_H
 
 #include "llvm/ADT/Optional.h"
 #include "llvm/ADT/StringRef.h"
@@ -110,4 +110,4 @@
 } // namespace find_all_symbols
 } // namespace clang
 
-#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOL_INFO_H
+#endif // LLVM_CLANG_TOOLS_EXTRA_INCLUDE_FIXER_FIND_ALL_SYMBOLS_SYMBOLINFO_H
diff --git a/clang-tools-extra/include-fixer/tool/ClangIncludeFixer.cpp b/clang-tools-extra/include-fixer/tool/ClangIncludeFixer.cpp
index ee98576..fef5a9d 100644
--- a/clang-tools-extra/include-fixer/tool/ClangIncludeFixer.cpp
+++ b/clang-tools-extra/include-fixer/tool/ClangIncludeFixer.cpp
@@ -7,10 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "InMemoryXrefsDB.h"
+#include "InMemorySymbolIndex.h"
 #include "IncludeFixer.h"
-#include "XrefsDBManager.h"
-#include "YamlXrefsDB.h"
+#include "SymbolIndexManager.h"
+#include "YamlSymbolIndex.h"
 #include "clang/Frontend/TextDiagnosticPrinter.h"
 #include "clang/Rewrite/Core/Rewriter.h"
 #include "clang/Tooling/CommonOptionsParser.h"
@@ -53,13 +53,13 @@
                           options.getSourcePathList());
 
   // Set up data source.
-  auto XrefsDBMgr = llvm::make_unique<include_fixer::XrefsDBManager>();
+  auto SymbolIndexMgr = llvm::make_unique<include_fixer::SymbolIndexManager>();
   switch (DatabaseFormat) {
   case fixed: {
     // Parse input and fill the database with it.
     // <symbol>=<header><, header...>
     // Multiple symbols can be given, separated by semicolons.
-    std::map<std::string, std::vector<std::string>> XrefsMap;
+    std::map<std::string, std::vector<std::string>> SymbolsMap;
     SmallVector<StringRef, 4> SemicolonSplits;
     StringRef(Input).split(SemicolonSplits, ";");
     for (StringRef Pair : SemicolonSplits) {
@@ -69,23 +69,24 @@
       Split.second.split(CommaSplits, ",");
       for (StringRef Header : CommaSplits)
         Headers.push_back(Header.trim());
-      XrefsMap[Split.first.trim()] = std::move(Headers);
+      SymbolsMap[Split.first.trim()] = std::move(Headers);
     }
-    XrefsDBMgr->addXrefsDB(
-        llvm::make_unique<include_fixer::InMemoryXrefsDB>(std::move(XrefsMap)));
+    SymbolIndexMgr->addSymbolIndex(
+        llvm::make_unique<include_fixer::InMemorySymbolIndex>(
+            std::move(SymbolsMap)));
     break;
   }
   case yaml: {
-    llvm::ErrorOr<std::unique_ptr<include_fixer::YamlXrefsDB>> DB(nullptr);
+    llvm::ErrorOr<std::unique_ptr<include_fixer::YamlSymbolIndex>> DB(nullptr);
     if (!Input.empty()) {
-      DB = include_fixer::YamlXrefsDB::createFromFile(Input);
+      DB = include_fixer::YamlSymbolIndex::createFromFile(Input);
     } else {
       // If we don't have any input file, look in the directory of the first
       // file and its parents.
       SmallString<128> AbsolutePath(
           tooling::getAbsolutePath(options.getSourcePathList().front()));
       StringRef Directory = llvm::sys::path::parent_path(AbsolutePath);
-      DB = include_fixer::YamlXrefsDB::createFromDirectory(
+      DB = include_fixer::YamlSymbolIndex::createFromDirectory(
           Directory, "find_all_symbols_db.yaml");
     }
 
@@ -95,15 +96,15 @@
       return 1;
     }
 
-    XrefsDBMgr->addXrefsDB(std::move(*DB));
+    SymbolIndexMgr->addSymbolIndex(std::move(*DB));
     break;
   }
   }
 
   // Now run our tool.
   std::vector<tooling::Replacement> Replacements;
-  include_fixer::IncludeFixerActionFactory Factory(*XrefsDBMgr, Replacements,
-                                                   MinimizeIncludePaths);
+  include_fixer::IncludeFixerActionFactory Factory(
+      *SymbolIndexMgr, Replacements, MinimizeIncludePaths);
 
   tool.run(&Factory); // Always succeeds.