fix rdar://9024687, a crash on invalid that we used to silently ignore.

llvm-svn: 125962
diff --git a/clang/test/Sema/scope-check.c b/clang/test/Sema/scope-check.c
index 1a2fc2b..a9494d3 100644
--- a/clang/test/Sema/scope-check.c
+++ b/clang/test/Sema/scope-check.c
@@ -229,3 +229,6 @@
     vla[0] = 'a';
   }
 }
+
+// rdar://9024687
+int test16(int [sizeof &&z]); // expected-error {{use of address-of-label extension outside of a function body}}