Fix some codegen tests to include positive checks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/incomplete-function-type.c b/test/CodeGen/incomplete-function-type.c
index a641268..c760e04 100644
--- a/test/CodeGen/incomplete-function-type.c
+++ b/test/CodeGen/incomplete-function-type.c
@@ -1,4 +1,7 @@
-// RUN: clang-cc -emit-llvm %s -o - | not grep opaque
+// RUN: clang-cc -emit-llvm -o - %s | FileCheck %s
+// CHECK: ModuleID
+// CHECK-NOT: opaque
+// CHECK: define void @f0
 
 enum teste1 test1f(void), (*test1)(void) = test1f;
 struct tests2 test2f(), (*test2)() = test2f;
@@ -8,3 +11,4 @@
 struct tests2 { int x,y,z,a,b,c,d,e,f,g; };
 struct tests3 { float x; };
 
+void f0() {}