Allow comparison between block pointers and NULL pointer
constants. Fixes PR10145.

llvm-svn: 133179
diff --git a/clang/test/SemaObjCXX/nullptr.mm b/clang/test/SemaObjCXX/nullptr.mm
index 4cd5669..4a9d1a0 100644
--- a/clang/test/SemaObjCXX/nullptr.mm
+++ b/clang/test/SemaObjCXX/nullptr.mm
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c++0x -fblocks -fsyntax-only -verify %s
 
 @interface A
 @end
@@ -11,3 +11,6 @@
 void assignment(A *a) {
   a = nullptr;
 }
+
+int PR10145a = (void(^)())0 == nullptr;
+int PR10145b = nullptr == (void(^)())0;