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/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index 704334d..26ef1bd 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -1117,7 +1117,7 @@
       = Context.DeclarationNames.getCXXConstructorName(
                                              Context.getCanonicalType(ToType));
     DeclContext::lookup_iterator Con, ConEnd;
-    for (llvm::tie(Con, ConEnd) = ToRecordDecl->lookup(Context, ConstructorName);
+    for (llvm::tie(Con, ConEnd) = ToRecordDecl->lookup(ConstructorName);
          Con != ConEnd; ++Con) {
       CXXConstructorDecl *Constructor = cast<CXXConstructorDecl>(*Con);
       if (Constructor->isConvertingConstructor())
@@ -2141,7 +2141,7 @@
   //        empty.
   if (const RecordType *T1Rec = T1->getAsRecordType()) {
     DeclContext::lookup_const_iterator Oper, OperEnd;
-    for (llvm::tie(Oper, OperEnd) = T1Rec->getDecl()->lookup(Context, OpName);
+    for (llvm::tie(Oper, OperEnd) = T1Rec->getDecl()->lookup(OpName);
          Oper != OperEnd; ++Oper)
       AddMethodCandidate(cast<CXXMethodDecl>(*Oper), Args[0], 
                          Args+1, NumArgs - 1, CandidateSet,
@@ -3392,7 +3392,7 @@
   OverloadCandidateSet CandidateSet;
   DeclarationName OpName = Context.DeclarationNames.getCXXOperatorName(OO_Call);
   DeclContext::lookup_const_iterator Oper, OperEnd;
-  for (llvm::tie(Oper, OperEnd) = Record->getDecl()->lookup(Context, OpName);
+  for (llvm::tie(Oper, OperEnd) = Record->getDecl()->lookup(OpName);
        Oper != OperEnd; ++Oper)
     AddMethodCandidate(cast<CXXMethodDecl>(*Oper), Object, Args, NumArgs, 
                        CandidateSet, /*SuppressUserConversions=*/false);
@@ -3577,7 +3577,7 @@
   const RecordType *BaseRecord = Base->getType()->getAsRecordType();
   
   DeclContext::lookup_const_iterator Oper, OperEnd;
-  for (llvm::tie(Oper, OperEnd) = BaseRecord->getDecl()->lookup(Context, OpName);
+  for (llvm::tie(Oper, OperEnd) = BaseRecord->getDecl()->lookup(OpName);
        Oper != OperEnd; ++Oper)
     AddMethodCandidate(cast<CXXMethodDecl>(*Oper), Base, 0, 0, CandidateSet,
                        /*SuppressUserConversions=*/false);