Move compile-fail tests with NOTE/HELP annotations to UI

src/test/ui/augmented-assignments.rs

@@ -0,0 +1,35 @@
+// Copyright 2015 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.
+
+use std::ops::AddAssign;
+
+struct Int(i32);
+
+impl AddAssign for Int {
+    fn add_assign(&mut self, _: Int) {
+        unimplemented!()
+    }
+}
+
+fn main() {
+    let mut x = Int(1);
+    x   //~ error: use of moved value: `x`
+    //~^ value used here after move
+    //~| note: move occurs because `x` has type `Int`
+    +=
+    x;  //~ value moved here
+
+    let y = Int(2);
+    //~^ consider changing this to `mut y`
+    y   //~ error: cannot borrow immutable local variable `y` as mutable
+        //~| cannot borrow
+    +=
+    Int(1);
+}