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/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 351694c..6585733 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -287,7 +287,7 @@
     // Perform qualified name lookup into the LookupCtx.
     // FIXME: Will need to look into base classes and such.
     DeclContext::lookup_const_iterator I, E;
-    for (llvm::tie(I, E) = LookupCtx->lookup(Context, Name); I != E; ++I)
+    for (llvm::tie(I, E) = LookupCtx->lookup(Name); I != E; ++I)
       if ((*I)->isInIdentifierNamespace(NS)) {
         // Ignore non-namespace names if we're only looking for namespaces.
         if (NamespaceNameOnly && !isa<NamespaceDecl>(*I)) continue;
@@ -334,7 +334,7 @@
       while (Ctx && (Ctx->isNamespace() || Ctx->isRecord())) {
         // Look for declarations of this name in this scope.
         DeclContext::lookup_const_iterator I, E;
-        for (llvm::tie(I, E) = Ctx->lookup(Context, Name); I != E; ++I) {
+        for (llvm::tie(I, E) = Ctx->lookup(Name); I != E; ++I) {
           // FIXME: Cache this result in the IdResolver
           if ((*I)->isInIdentifierNamespace(NS)) {
             if (NamespaceNameOnly && !isa<NamespaceDecl>(*I))