new testcase

llvm-svn: 38618
diff --git a/clang/test/Preprocessor/_Pragma-location.c b/clang/test/Preprocessor/_Pragma-location.c
new file mode 100644
index 0000000..152e71a
--- /dev/null
+++ b/clang/test/Preprocessor/_Pragma-location.c
@@ -0,0 +1,4 @@
+// RUN: clang %s -E | not grep 'scratch space'
+
+#define push _Pragma ("pack(push)")
+push