FileCheckize these testcases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154281 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Assembler/getelementptr_struct.ll b/test/Assembler/getelementptr_struct.ll
index c8779a6..bfebf29 100644
--- a/test/Assembler/getelementptr_struct.ll
+++ b/test/Assembler/getelementptr_struct.ll
@@ -1,6 +1,8 @@
-; RUN: not llvm-as < %s >/dev/null |& grep {invalid getelementptr indices}
+; RUN: not llvm-as < %s >/dev/null |& FileCheck %s
 ; Test the case of a incorrect indices type into struct
 
+; CHECK: invalid getelementptr indices
+
 %RT = type { i8 , [10 x [20 x i32]], i8  }
 %ST = type { i32, double, %RT }