Auto merge of #21187 - oli-obk:feature/hint_struct_field_access, r=alexcrichton

rebase and fix of #19267

src/test/compile-fail/struct-fields-hints-no-dupe.rs

@@ -0,0 +1,24 @@
+// 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.
+
+struct A {
+    foo : i32,
+    car : i32,
+    barr : i32
+}
+
+fn main() {
+    let a = A {
+        foo : 5,
+        bar : 42,//~ ERROR structure `A` has no field named `bar`
+        //~^ HELP did you mean `barr`?
+        car : 9,
+    };
+}

src/test/compile-fail/struct-fields-hints.rs

@@ -0,0 +1,23 @@
+// 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.
+
+struct A {
+    foo : i32,
+    car : i32,
+    barr : i32
+}
+
+fn main() {
+    let a = A {
+        foo : 5,
+        bar : 42,//~ ERROR structure `A` has no field named `bar`
+        //~^ HELP did you mean `car`?
+    };
+}

src/test/compile-fail/struct-fields-typo.rs

@@ -0,0 +1,24 @@
+// 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.
+
+struct BuildData {
+    foo: isize,
+    bar: f32
+}
+
+fn main() {
+    let foo = BuildData {
+        foo: 0,
+        bar: 0.5,
+    };
+    let x = foo.baa;//~ ERROR attempted access of field `baa` on type `BuildData`
+    //~^ HELP did you mean `bar`?
+    println!("{}", x);
+}