adjust for the new -Wvector-conversions option

llvm-svn: 69366
diff --git a/clang/test/Sema/vector-assign.c b/clang/test/Sema/vector-assign.c
index 3c0cd90..5162e1a 100644
--- a/clang/test/Sema/vector-assign.c
+++ b/clang/test/Sema/vector-assign.c
@@ -1,4 +1,4 @@
-// RUN: clang-cc %s -verify -fsyntax-only
+// RUN: clang-cc %s -verify -fsyntax-only -Wvector-conversions
 typedef unsigned int v2u __attribute__ ((vector_size (8)));
 typedef signed int v2s __attribute__ ((vector_size (8)));
 typedef signed int v1s __attribute__ ((vector_size (4)));