Auto merge of #50259 - GuillaumeGomez:improve-results, r=ollie27

Rustdoc improvements

Fixes #50658. (last commit)

A lot of small improvements.

r? @QuietMisdreavus

src/test/rustdoc-js/deduplication.js

@@ -0,0 +1,21 @@
+// 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.
+
+// ignore-order
+
+const QUERY = 'is_nan';
+
+const EXPECTED = {
+    'others': [
+        { 'path': 'std::f32', 'name': 'is_nan' },
+        { 'path': 'std::f64', 'name': 'is_nan' },
+        { 'path': 'std::option::Option', 'name': 'is_none' },
+    ],
+};