Auto merge of #47917 - davidtwco:issue-47703, r=nikomatsakis

Fixes NLL: error from URL crate

Fixes #47703.

r? @nikomatsakis

src/test/run-pass/issue-47703-1.rs

@@ -0,0 +1,33 @@
+// Copyright 2012 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.
+
+#![feature(nll)]
+
+struct AtomicRefMut<'a> {
+    value: &'a mut i32,
+    borrow: AtomicBorrowRefMut,
+}
+
+struct AtomicBorrowRefMut {
+}
+
+impl Drop for AtomicBorrowRefMut {
+    fn drop(&mut self) {
+    }
+}
+
+fn map(orig: AtomicRefMut) -> AtomicRefMut {
+    AtomicRefMut {
+        value: orig.value,
+        borrow: orig.borrow,
+    }
+}
+
+fn main() {}

src/test/run-pass/issue-47703.rs

@@ -0,0 +1,28 @@
+// Copyright 2012 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.
+
+#![feature(nll)]
+
+struct MyStruct<'a> {
+    field: &'a mut (),
+    field2: WithDrop
+}
+
+struct WithDrop;
+
+impl Drop for WithDrop {
+    fn drop(&mut self) {}
+}
+
+impl<'a> MyStruct<'a> {
+    fn consume(self) -> &'a mut () { self.field }
+}
+
+fn main() {}