rustc_resolve: record single-segment extern crate import resolutions.

2 files changed, 30 insertions, 0 deletions

diff --git a/src/test/compile-fail/auxiliary/issue-52489.rs b/src/test/compile-fail/auxiliary/issue-52489.rs
new file mode 100644
index 00000000000..68d1ef8d776
--- /dev/null
+++ b/src/test/compile-fail/auxiliary/issue-52489.rs
@@ -0,0 +1,13 @@
+// Copyright 2018 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.
+
+#![crate_type = "lib"]
+#![unstable(feature = "issue_52489_unstable", issue = "0")]
+#![feature(staged_api)]
diff --git a/src/test/compile-fail/issue-52489.rs b/src/test/compile-fail/issue-52489.rs
new file mode 100644
index 00000000000..c43cc12ca02
--- /dev/null
+++ b/src/test/compile-fail/issue-52489.rs
@@ -0,0 +1,17 @@
+// Copyright 2018 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.
+
+// edition:2018
+// aux-build:issue-52489.rs
+
+use issue_52489;
+//~^ ERROR use of unstable library feature 'issue_52489_unstable'
+
+fn main() {}