Initial work for property implementation declarations.
Mostly semantic checking in this patch. This is on going
and incomplete.

llvm-svn: 49882
diff --git a/clang/lib/Sema/Sema.h b/clang/lib/Sema/Sema.h
index 50842f7..9d60093 100644
--- a/clang/lib/Sema/Sema.h
+++ b/clang/lib/Sema/Sema.h
@@ -656,7 +656,13 @@
                       DeclTy **allProperties = 0, unsigned pNum = 0);
   
   virtual DeclTy *ActOnProperty(Scope *S, SourceLocation AtLoc,
-                                FieldDeclarator &FD, ObjCDeclSpec &ODS);  
+                                FieldDeclarator &FD, ObjCDeclSpec &ODS);
+  virtual DeclTy *ActOnPropertyImplDecl(SourceLocation AtLoc, 
+                                        SourceLocation PropertyLoc,
+                                        bool ImplKind, DeclTy *ClassImplDecl,
+                                        IdentifierInfo *PropertyId,
+                                        IdentifierInfo *PropertyIvar);
+  
   virtual DeclTy *ActOnMethodDeclaration(
     SourceLocation BeginLoc, // location of the + or -.
     SourceLocation EndLoc,   // location of the ; or {.