Add a test to make sure __has_include works from inside a macro.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176152 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/has_include.c b/test/Preprocessor/has_include.c
index 4e71a36..7cc67fa 100644
--- a/test/Preprocessor/has_include.c
+++ b/test/Preprocessor/has_include.c
@@ -170,3 +170,9 @@
// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} // expected-error@+1 {{expected value in expression}}
#if __has_include(<stdint.h)
#endif
+
+#define HAS_INCLUDE(header) __has_include(header)
+#if HAS_INCLUDE(<stdint.h>)
+#else
+ #error "__has_include failed (9)."
+#endif
