minor cleanups, make getNumInstanceMethods always return unsigned.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48423 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index 17b1d28..62336b6 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -49,10 +49,9 @@
 
 ObjCProtocolDecl *ObjCProtocolDecl::Create(ASTContext &C, SourceLocation L, 
                                            unsigned numRefProtos,
-                                           IdentifierInfo *Id, 
-                                           bool ForwardDecl) {
+                                           IdentifierInfo *Id) {
   void *Mem = C.getAllocator().Allocate<ObjCProtocolDecl>();
-  return new (Mem) ObjCProtocolDecl(L, numRefProtos, Id, ForwardDecl);
+  return new (Mem) ObjCProtocolDecl(L, numRefProtos, Id);
 }