rustdoc-search: fix fast path unboxing bindings

Author: notriddle

src/librustdoc/html/static/js/search.js

@@ -1433,7 +1433,7 @@ function initSearch(rawSearchIndex) {
                             return true;
                         }
                     } else if (unifyFunctionTypes(
-                        fnType.generics,
+                        [...fnType.generics, ...Array.from(fnType.bindings.values()).flat() ],
                         queryElems,
                         whereClause,
                         mgens ? new Map(mgens) : null,

tests/rustdoc-js/assoc-type.js

@@ -19,6 +19,17 @@ const EXPECTED = [
             { 'path': 'assoc_type::my', 'name': 'other_fn' },
         ],
     },
+    {
+        'query': 'something',
+        'correction': null,
+        'others': [
+            { 'path': 'assoc_type', 'name': 'Something' },
+        ],
+        'in_args': [
+            { 'path': 'assoc_type', 'name': 'my_fn' },
+            { 'path': 'assoc_type::my', 'name': 'other_fn' },
+        ],
+    },
     // if I write an explicit binding, only it shows up
     {
         'query': 'iterator<item=something> -> u32',