Introduce the canonical type smart pointers, and use them in a few places to
tighten up the static type system.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78164 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclarationName.cpp b/lib/AST/DeclarationName.cpp
index a55b363..da9f01a 100644
--- a/lib/AST/DeclarationName.cpp
+++ b/lib/AST/DeclarationName.cpp
@@ -298,12 +298,10 @@
 
 DeclarationName 
 DeclarationNameTable::getCXXSpecialName(DeclarationName::NameKind Kind, 
-                                        QualType Ty) {
+                                        CanQualType Ty) {
   assert(Kind >= DeclarationName::CXXConstructorName &&
          Kind <= DeclarationName::CXXConversionFunctionName &&
          "Kind must be a C++ special name kind");
-  assert(Ty->isCanonical() && 
-         "Can only build C++ special names from canonical types");
   llvm::FoldingSet<CXXSpecialName> *SpecialNames 
     = static_cast<llvm::FoldingSet<CXXSpecialName>*>(CXXSpecialNamesImpl);