lit: Add ExampleTests, for testing lit and demonstrating test suite features.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86654 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/lit/ExampleTests/TclTest/stderr-pipe.ll b/utils/lit/ExampleTests/TclTest/stderr-pipe.ll
new file mode 100644
index 0000000..6c55fe8
--- /dev/null
+++ b/utils/lit/ExampleTests/TclTest/stderr-pipe.ll
@@ -0,0 +1 @@
+; RUN: gcc -### > /dev/null |& grep {gcc version}