incr.comp.: Implement query diagnostic persistence.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/test/incremental/warnings-reemitted.rs b/src/test/incremental/warnings-reemitted.rs
new file mode 100644
index 00000000000..bf66ac7829c
--- /dev/null
+++ b/src/test/incremental/warnings-reemitted.rs
@@ -0,0 +1,19 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// revisions: cfail1 cfail2 cfail3
+// compile-flags: -Coverflow-checks=on
+// must-compile-successfully
+
+#![allow(warnings)]
+
+fn main() {
+    255u8 + 1; //~ WARNING this expression will panic at run-time
+}