Fixed __builtin_constant_p return type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116145 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/i-c-e.c b/test/Sema/i-c-e.c
index eb77bbe..1347ee8 100644
--- a/test/Sema/i-c-e.c
+++ b/test/Sema/i-c-e.c
@@ -9,6 +9,7 @@
 int expr;
 char w[__builtin_constant_p(expr) ? expr : 1];
 
+char v[sizeof(__builtin_constant_p(0)) == sizeof(int) ? 1 : -1];
 
 // __builtin_constant_p as the condition of ?: allows arbitrary foldable
 // constants to be transmogrified into i-c-e's.