First step toward fixing <rdar://problem/6613046> refactor clang objc type representation.

Add a type (ObjCObjectPointerType) and remove a type (ObjCQualifiedIdType).

This large/tedious patch is just a first step. Next step is to remove ObjCQualifiedInterfaceType. After that, I will remove the magic TypedefType for 'id' (installed by Sema). This work will enable various simplifications throughout clang (when dealing with ObjC types). 

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73649 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index 254080a..60d8e5f 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -164,7 +164,7 @@
   // Synthesize "typedef struct objc_object { Class isa; } *id;"
   if (Context.getObjCIdType().isNull()) {
     RecordDecl *ObjectTag = CreateStructDecl(Context, "objc_object");
-    
+
     QualType ObjT = Context.getPointerType(Context.getTagDeclType(ObjectTag));
     PushOnScopeChains(ObjectTag, TUScope);
     TypedefDecl *IdTypedef = TypedefDecl::Create(Context, CurContext,