Stage two of getting CFE top correct.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39734 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/macro_defined.c b/test/Preprocessor/macro_defined.c
new file mode 100644
index 0000000..f120197
--- /dev/null
+++ b/test/Preprocessor/macro_defined.c
@@ -0,0 +1,6 @@
+// RUN: clang %s -E 2>&1 | not grep error
+
+// This should not be rejected.
+#ifdef defined
+#endif
+