Create a new InjectedClassNameType to represent bare-word references to the

injected class name of a class template or class template partial specialization.
This is a non-canonical type;  the canonical type is still a template 
specialization type.  This becomes the TypeForDecl of the pattern declaration,
which cleans up some amount of code (and complicates some other parts, but
whatever).

Fixes PR6326 and probably a few others, primarily by re-establishing a few
invariants about TypeLoc sizes.     



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98134 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index 93af754683..eed3cc1a5b 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -235,6 +235,12 @@ void PCHTypeWriter::VisitQualifiedNameType(const QualifiedNameType *T) {
   assert(false && "Cannot serialize qualified name types");
 }
 
+void PCHTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) {
+  Writer.AddDeclRef(T->getDecl(), Record);
+  Writer.AddTypeRef(T->getUnderlyingType(), Record);
+  Code = pch::TYPE_INJECTED_CLASS_NAME;
+}
+
 void PCHTypeWriter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
   Writer.AddDeclRef(T->getDecl(), Record);
   Record.push_back(T->getNumProtocols());
@@ -394,6 +400,9 @@ void TypeLocWriter::VisitTemplateSpecializationTypeLoc(
 void TypeLocWriter::VisitQualifiedNameTypeLoc(QualifiedNameTypeLoc TL) {
   Writer.AddSourceLocation(TL.getNameLoc(), Record);
 }
+void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
+  Writer.AddSourceLocation(TL.getNameLoc(), Record);
+}
 void TypeLocWriter::VisitTypenameTypeLoc(TypenameTypeLoc TL) {
   Writer.AddSourceLocation(TL.getNameLoc(), Record);
 }