Fix quoted search

Author: GuillaumeGomez

src/librustdoc/html/static/main.js

@@ -600,7 +600,7 @@
                 var lev_distance = MAX_LEV_DISTANCE + 1;
                 if (obj.name === val.name) {
                     if (literalSearch === true) {
-                        if (val.generics.length !== 0) {
+                        if (val.generics && val.generics.length !== 0) {
                             if (obj.generics && obj.length >= val.generics.length) {
                                 var elems = obj.generics.slice(0);
                                 var allFound = true;
@@ -637,7 +637,7 @@
                 }
                 // Names didn't match so let's check if one of the generic types could.
                 if (literalSearch === true) {
-                     if (obj.generics.length > 0) {
+                     if (obj.generics && obj.generics.length > 0) {
                         for (var x = 0; x < obj.generics.length; ++x) {
                             if (obj.generics[x] === val.name) {
                                 return true;

src/test/rustdoc-js/quoted.js

@@ -0,0 +1,23 @@
+// 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.
+
+const QUERY = '"error"';
+
+const EXPECTED = {
+    'others': [
+        { 'path': 'std', 'name': 'error' },
+        { 'path': 'std::fmt', 'name': 'Error' },
+        { 'path': 'std::io', 'name': 'Error' },
+    ],
+    'in_args': [],
+    'returned': [
+        { 'path': 'std::fmt::LowerExp', 'name': 'fmt' },
+    ],
+};