clang/test: [PR13820] Suppress LLP64-incompatible tests for ObjC with +Asserts.

llvm-svn: 163709
diff --git a/clang/test/Driver/objc++-cpp-output.mm b/clang/test/Driver/objc++-cpp-output.mm
index bb88144..9c4d553 100644
--- a/clang/test/Driver/objc++-cpp-output.mm
+++ b/clang/test/Driver/objc++-cpp-output.mm
@@ -1,5 +1,8 @@
 // RUN: %clang -x objc++-cpp-output -c %s -o /dev/null
 
+// PR13820
+// REQUIRES: LP64
+
 // Should compile without errors
 @protocol P
 - (void)m;