Fix PR15845: apparently MSVC does not support implicit int in C++ mode.

llvm-svn: 180822
diff --git a/clang/test/Rewriter/rewrite-byref-in-nested-blocks.mm b/clang/test/Rewriter/rewrite-byref-in-nested-blocks.mm
index 022bb5f..f416b66 100644
--- a/clang/test/Rewriter/rewrite-byref-in-nested-blocks.mm
+++ b/clang/test/Rewriter/rewrite-byref-in-nested-blocks.mm
@@ -19,7 +19,7 @@
 - (void)foo {
         __block int kerfluffle;
         // radar 7692183
-        __block x; 
+        __block int x;
         f(^{
                 f(^{
                                 y = 42;