Remove Scope argument from ObjC actions that either don't need it or can now use TUScope.
Also improve a recently added comment.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42826 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Parse/MinimalAction.cpp b/Parse/MinimalAction.cpp
index 05b91da..932f8ff 100644
--- a/Parse/MinimalAction.cpp
+++ b/Parse/MinimalAction.cpp
@@ -68,7 +68,7 @@
 }
 
 Action::DeclTy *
-MinimalAction::ActOnStartClassInterface(Scope* S, SourceLocation AtInterafceLoc,
+MinimalAction::ActOnStartClassInterface(SourceLocation AtInterafceLoc,
                     IdentifierInfo *ClassName, SourceLocation ClassLoc,
                     IdentifierInfo *SuperName, SourceLocation SuperLoc,
                     IdentifierInfo **ProtocolNames, unsigned NumProtocols,
@@ -83,7 +83,7 @@
 /// ActOnForwardClassDeclaration - 
 /// Scope will always be top level file scope. 
 Action::DeclTy *
-MinimalAction::ActOnForwardClassDeclaration(Scope *S, SourceLocation AtClassLoc,
+MinimalAction::ActOnForwardClassDeclaration(SourceLocation AtClassLoc,
                                 IdentifierInfo **IdentList, unsigned NumElts) {
   for (unsigned i = 0; i != NumElts; ++i) {
     TypeNameInfo *TI =
@@ -92,7 +92,7 @@
     IdentList[i]->setFETokenInfo(TI);
   
     // Remember that this needs to be removed when the scope is popped.
-    S->AddDecl(IdentList[i]);
+    TUScope->AddDecl(IdentList[i]);
   }
   return 0;
 }
diff --git a/Parse/ParseDecl.cpp b/Parse/ParseDecl.cpp
index dcbbd89..00e441412 100644
--- a/Parse/ParseDecl.cpp
+++ b/Parse/ParseDecl.cpp
@@ -409,8 +409,7 @@
             if (Tok.is(tok::less)) {
               llvm::SmallVector<IdentifierInfo *, 8> ProtocolRefs;
               ParseObjCProtocolReferences(ProtocolRefs);
-              Actions.ActOnFindProtocolDeclaration(CurScope,
-                                                   Loc,
+              Actions.ActOnFindProtocolDeclaration(Loc,
                                                    &ProtocolRefs[0],
                                                    ProtocolRefs.size());
             }
diff --git a/Parse/ParseObjc.cpp b/Parse/ParseObjc.cpp
index e3c5f72..464fad2 100644
--- a/Parse/ParseObjc.cpp
+++ b/Parse/ParseObjc.cpp
@@ -80,7 +80,7 @@
   if (ExpectAndConsume(tok::semi, diag::err_expected_semi_after, "@class"))
     return 0;
   
-  return Actions.ActOnForwardClassDeclaration(CurScope, atLoc,
+  return Actions.ActOnForwardClassDeclaration(atLoc,
                                       &ClassNames[0], ClassNames.size());
 }
 
@@ -154,7 +154,7 @@
     if (attrList) // categories don't support attributes.
       Diag(Tok, diag::err_objc_no_attributes_on_category);
     
-    DeclTy *CategoryType = Actions.ActOnStartCategoryInterface(CurScope, atLoc, 
+    DeclTy *CategoryType = Actions.ActOnStartCategoryInterface(atLoc, 
                                      nameId, nameLoc, categoryId, categoryLoc,
                                      &ProtocolRefs[0], ProtocolRefs.size());
     
@@ -187,7 +187,7 @@
     if (ParseObjCProtocolReferences(ProtocolRefs))
       return 0;
   }
-  DeclTy *ClsType = Actions.ActOnStartClassInterface(CurScope,
+  DeclTy *ClsType = Actions.ActOnStartClassInterface(
 		      atLoc, nameId, nameLoc, 
                       superClassId, superClassLoc, &ProtocolRefs[0], 
                       ProtocolRefs.size(), attrList);
@@ -799,7 +799,7 @@
       return 0;
   }
   if (ProtocolRefs.size() > 0)
-    return Actions.ActOnForwardProtocolDeclaration(CurScope, AtLoc,
+    return Actions.ActOnForwardProtocolDeclaration(AtLoc,
                                                    &ProtocolRefs[0], 
                                                    ProtocolRefs.size());
   // Last, and definitely not least, parse a protocol declaration.
@@ -808,7 +808,7 @@
       return 0;
   }
   
-  DeclTy *ProtoType = Actions.ActOnStartProtocolInterface(CurScope, AtLoc, 
+  DeclTy *ProtoType = Actions.ActOnStartProtocolInterface(AtLoc, 
                                 protocolName, nameLoc,
                                 &ProtocolRefs[0],
                                 ProtocolRefs.size());
@@ -867,7 +867,7 @@
       return 0;
     }
     rparenLoc = ConsumeParen();
-    DeclTy *ImplCatType = Actions.ActOnStartCategoryImplementation(CurScope,
+    DeclTy *ImplCatType = Actions.ActOnStartCategoryImplementation(
                                     atLoc, nameId, nameLoc, categoryId, 
                                     categoryLoc);
     return ImplCatType;
@@ -885,7 +885,7 @@
     superClassId = Tok.getIdentifierInfo();
     superClassLoc = ConsumeToken(); // Consume super class name
   }
-  DeclTy *ImplClsType = Actions.ActOnStartClassImplementation(CurScope,
+  DeclTy *ImplClsType = Actions.ActOnStartClassImplementation(
 				  atLoc, nameId, nameLoc,
                                   superClassId, superClassLoc);