[PDB] Change uint32_t to SymIndex wherever it makes sense.

Although it's just a typedef, it helps for readability.  NFC.

llvm-svn: 341863
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
index 14c976f..b278526 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeCompilandSymbol.cpp
@@ -41,7 +41,7 @@
   return Module.hasECInfo();
 }
 
-uint32_t NativeCompilandSymbol::getLexicalParentId() const { return 0; }
+SymIndexId NativeCompilandSymbol::getLexicalParentId() const { return 0; }
 
 // The usage of getObjFileName for getLibraryName and getModuleName for getName
 // may seem backwards, but it is consistent with DIA, which is what this API
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
index c0e6df7..e36d534 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeRawSymbol.cpp
@@ -110,9 +110,7 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getArrayIndexTypeId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getArrayIndexTypeId() const { return 0; }
 
 void NativeRawSymbol::getBackEndVersion(VersionInfo &Version) const {
   Version.Major = 0;
@@ -129,9 +127,7 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getBaseSymbolId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getBaseSymbolId() const { return 0; }
 
 PDB_BuiltinType NativeRawSymbol::getBuiltinType() const {
   return PDB_BuiltinType::None;
@@ -145,9 +141,7 @@
   return PDB_CallingConv::FarStdCall;
 }
 
-uint32_t NativeRawSymbol::getClassParentId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getClassParentId() const { return 0; }
 
 std::string NativeRawSymbol::getCompilerName() const {
   return {};
@@ -172,9 +166,7 @@
   return PDB_Lang::Cobol;
 }
 
-uint32_t NativeRawSymbol::getLexicalParentId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getLexicalParentId() const { return 0; }
 
 std::string NativeRawSymbol::getLibraryName() const {
   return {};
@@ -196,9 +188,7 @@
   return codeview::RegisterId::EAX;
 }
 
-uint32_t NativeRawSymbol::getLowerBoundId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getLowerBoundId() const { return 0; }
 
 uint32_t NativeRawSymbol::getMemorySpaceKind() const {
   return 0;
@@ -236,9 +226,7 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getOemSymbolId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getOemSymbolId() const { return 0; }
 
 uint32_t NativeRawSymbol::getOffsetInUdt() const {
   return 0;
@@ -293,13 +281,11 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getSubTypeId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getSubTypeId() const { return 0; }
 
 std::string NativeRawSymbol::getSymbolsFileName() const { return {}; }
 
-uint32_t NativeRawSymbol::getSymIndexId() const { return SymbolId; }
+SymIndexId NativeRawSymbol::getSymIndexId() const { return SymbolId; }
 
 uint32_t NativeRawSymbol::getTargetOffset() const {
   return 0;
@@ -329,9 +315,7 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getTypeId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getTypeId() const { return 0; }
 
 uint32_t NativeRawSymbol::getUavSlot() const {
   return 0;
@@ -346,13 +330,9 @@
   return {};
 }
 
-uint32_t NativeRawSymbol::getUnmodifiedTypeId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getUnmodifiedTypeId() const { return 0; }
 
-uint32_t NativeRawSymbol::getUpperBoundId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getUpperBoundId() const { return 0; }
 
 Variant NativeRawSymbol::getValue() const {
   return Variant();
@@ -366,9 +346,7 @@
   return 0;
 }
 
-uint32_t NativeRawSymbol::getVirtualTableShapeId() const {
-  return 0;
-}
+SymIndexId NativeRawSymbol::getVirtualTableShapeId() const { return 0; }
 
 std::unique_ptr<PDBSymbolTypeBuiltin>
 NativeRawSymbol::getVirtualBaseTableType() const {
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
index c970323..baab0a2 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeSession.cpp
@@ -89,7 +89,7 @@
 }
 
 std::unique_ptr<PDBSymbol>
-NativeSession::getSymbolById(uint32_t SymbolId) const {
+NativeSession::getSymbolById(SymIndexId SymbolId) const {
   return Cache.getSymbolById(SymbolId);
 }
 
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
index b238ace..ddb874b 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypeEnum.cpp
@@ -155,7 +155,7 @@
   llvm_unreachable("Unreachable");
 }
 
-uint32_t NativeTypeEnum::getUnmodifiedTypeId() const {
+SymIndexId NativeTypeEnum::getUnmodifiedTypeId() const {
   // FIXME: If this is const, volatile, or unaligned, we should return the
   // SymIndexId of the unmodified type here.
   return 0;
@@ -212,7 +212,7 @@
   return bool(Record.getOptions() & codeview::ClassOptions::Scoped);
 }
 
-uint32_t NativeTypeEnum::getTypeId() const {
+SymIndexId NativeTypeEnum::getTypeId() const {
   return Session.getSymbolCache().findSymbolByTypeIndex(
       Record.getUnderlyingType());
 }
diff --git a/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp b/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
index bc3657b..0a648c7 100644
--- a/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/NativeTypePointer.cpp
@@ -57,7 +57,7 @@
 
 uint64_t NativeTypePointer::getLength() const { return Record.getSize(); }
 
-uint32_t NativeTypePointer::getTypeId() const {
+SymIndexId NativeTypePointer::getTypeId() const {
   // This is the pointee SymIndexId.
   return Session.getSymbolCache().findSymbolByTypeIndex(Record.ReferentType);
 }