Canonicalize the declaration we write to a PCH file for an

InjectedClassNameType; otherwise, it won't be properly wired to the
original (canonical) declaration when it is deserialized. Fixes
<rdar://problem/11112464>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153442 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Serialization/ASTWriter.cpp

@@ -365,7 +365,7 @@ void ASTTypeWriter::VisitElaboratedType(const ElaboratedType *T) {
 }
 
 void ASTTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) {
-  Writer.AddDeclRef(T->getDecl(), Record);
+  Writer.AddDeclRef(T->getDecl()->getCanonicalDecl(), Record);
   Writer.AddTypeRef(T->getInjectedSpecializationType(), Record);
   Code = TYPE_INJECTED_CLASS_NAME;
 }

test/PCH/cxx-templates.cpp

@@ -62,3 +62,9 @@ namespace Test1 {
     }
   };
 }
+
+template< typename D >
+Foo< D >& Foo< D >::operator=( const Foo& other )
+{
+   return *this;
+}

test/PCH/cxx-templates.h

@@ -205,3 +205,13 @@ namespace NonTypeTemplateParmContext {
   template<int inlineCapacity>
     inline bool equalIgnoringNullity(const Vector<char, inlineCapacity>& a, const String& b) { return false; }
 }
+
+// <rdar://problem/11112464>
+template< typename > class Foo;
+
+template< typename T >
+class Foo : protected T
+{
+ public:
+  Foo& operator=( const Foo& other );
+};