Add support for code completion on stdin.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117414 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeCompletion/stdin.c b/test/CodeCompletion/stdin.c
new file mode 100644
index 0000000..46495b2
--- /dev/null
+++ b/test/CodeCompletion/stdin.c
@@ -0,0 +1,7 @@
+enum X { x };
+enum Y { y };
+
+enum 
+  // RUN: %clang_cc1 -fsyntax-only -code-completion-at=-:4:6 < %s -o - | FileCheck -check-prefix=CC1 %s
+  // CHECK-CC1: X
+  // CHECK-CC1: Y