This is a large/messy diff that unifies the ObjC AST's with DeclContext.

- ObjCContainerDecl's (ObjCInterfaceDecl/ObjCCategoryDecl/ObjCProtocolDecl), ObjCCategoryImpl, & ObjCImplementation are all DeclContexts.
- ObjCMethodDecl is now a ScopedDecl (so it can play nicely with DeclContext).
- ObjCContainerDecl now does iteration/lookup using DeclContext infrastructure (no more linear search:-)
- Removed ASTContext argument to DeclContext::lookup(). It wasn't being used and complicated it's use from an ObjC AST perspective.
- Added Sema::ProcessPropertyDecl() and removed Sema::diagnosePropertySetterGetterMismatch().
- Simplified Sema::ActOnAtEnd() considerably. Still more work to do.
- Fixed an incorrect casting assumption in Sema::getCurFunctionOrMethodDecl(), now that ObjCMethodDecl is a ScopedDecl.
- Removed addPropertyMethods from ObjCInterfaceDecl/ObjCCategoryDecl/ObjCProtocolDecl.

This passes all the tests on my machine. Since many of the changes are central to the way ObjC finds it's methods, I expect some fallout (and there are still a handful of FIXME's). Nevertheless, this should be a step in the right direction.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61929 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index 3510b5d..111dca4 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -414,7 +414,7 @@
                                   FunctionDecl *&Operator)
 {
   DeclContext::lookup_iterator Alloc, AllocEnd;
-  llvm::tie(Alloc, AllocEnd) = Ctx->lookup(Context, Name);
+  llvm::tie(Alloc, AllocEnd) = Ctx->lookup(Name);
   if (Alloc == AllocEnd) {
     if (AllowMissing)
       return false;
@@ -517,7 +517,7 @@
   // Check if this function is already declared.
   {
     DeclContext::lookup_iterator Alloc, AllocEnd;
-    for (llvm::tie(Alloc, AllocEnd) = GlobalCtx->lookup(Context, Name);
+    for (llvm::tie(Alloc, AllocEnd) = GlobalCtx->lookup(Name);
          Alloc != AllocEnd; ++Alloc) {
       // FIXME: Do we need to check for default arguments here?
       FunctionDecl *Func = cast<FunctionDecl>(*Alloc);