Fix empty lifetime list or one with trailing comma being rejected

Fixes #37733

1 files changed, 15 insertions, 0 deletions

diff --git a/src/test/run-pass/issue-37733.rs b/src/test/run-pass/issue-37733.rs
new file mode 100644
index 00000000000..358b93254de
--- /dev/null
+++ b/src/test/run-pass/issue-37733.rs
@@ -0,0 +1,15 @@
+// Copyright 2016 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.
+
+type A = for<> fn();
+
+type B = for<'a,> fn();
+
+pub fn main() {}