move Iterator.prototype.join to stage 2.7

Author: zloirock

docs/web/docs/menu.json

@@ -266,6 +266,10 @@
               {
                 "title": "Iterator chunking",
                 "url": "{docs-version}/docs/features/proposals/iterator-chunking"
+              },
+              {
+                "title": "Iterator join",
+                "url": "{docs-version}/docs/features/proposals/iterator-join"
               }
             ]
           },
@@ -341,10 +345,6 @@
               {
                 "title": "Function.prototype.demethodize",
                 "url": "{docs-version}/docs/features/proposals/function-prototype-demethodize"
-              },
-              {
-                "title": "Iterator join",
-                "url": "{docs-version}/docs/features/proposals/iterator-join"
               }
             ]
           }

scripts/build-entries/entries-definitions.mjs

@@ -3471,7 +3471,7 @@ export const proposals = {
   },
   'iterator-join': {
     link: 'https://github.com/bakkot/proposal-iterator-join',
-    stage: 0,
+    stage: 2.7,
     modules: [
       'esnext.iterator.join',
     ],

tests/entries/unit.mjs

@@ -742,10 +742,11 @@ for (PATH of ['@core-js/pure', 'core-js']) {
     ok(load(NS, 'function/prototype/demethodize').call([].slice)([1, 2, 3], 1)[0] === 2);
     ok(load(NS, 'iterator/range')(1, 2).next().value === 1);
     ok(typeof load(NS, 'iterator/chunks') == 'function');
-    ok(typeof load(NS, 'iterator/join') == 'function');
+    ok(load(NS, 'iterator/join')([1, 2].values()) === '1,2');
     ok(typeof load(NS, 'iterator/to-async') == 'function');
     ok(typeof load(NS, 'iterator/windows') == 'function');
     ok(typeof load(NS, 'iterator/prototype/chunks') == 'function');
+    ok(load(NS, 'iterator/prototype/join').call([1, 2].values()) === '1,2');
     ok(typeof load(NS, 'iterator/prototype/windows') == 'function');
     ok(typeof load(NS, 'iterator/prototype/to-async') == 'function');
     ok(load(NS, 'map/from')([[1, 2], [3, 4]]) instanceof Map);