Fixes a bug for objc2's gc in the presense of type-casts.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71041 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 13d2a1b..77a25f6 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -935,6 +935,8 @@
     return cast<ParenExpr>(this)->getSubExpr()->isOBJCGCCandidate();
   case ImplicitCastExprClass:
     return cast<ImplicitCastExpr>(this)->getSubExpr()->isOBJCGCCandidate();
+  case CStyleCastExprClass:
+    return cast<CStyleCastExpr>(this)->getSubExpr()->isOBJCGCCandidate();
   case DeclRefExprClass:
   case QualifiedDeclRefExprClass: {
     const Decl *D = cast<DeclRefExpr>(this)->getDecl();
@@ -944,7 +946,7 @@
   }
   case MemberExprClass: {
     const MemberExpr *M = cast<MemberExpr>(this);
-    return !M->isArrow() && M->getBase()->isOBJCGCCandidate();
+    return M->getBase()->isOBJCGCCandidate();
   }
   case ArraySubscriptExprClass:
     return cast<ArraySubscriptExpr>(this)->getBase()->isOBJCGCCandidate();