Make generators non-constructable

test/mjsunit/es6/generators-iteration.js

Index: test/mjsunit/es6/generators-iteration.js
diff --git a/test/mjsunit/es6/generators-iteration.js b/test/mjsunit/es6/generators-iteration.js
index faeb68380fea4aa67a97ace057291d075e23a6c8..de4ae48ac6fb52f59f0059d993f86471ac0eb696 100644
--- a/test/mjsunit/es6/generators-iteration.js
+++ b/test/mjsunit/es6/generators-iteration.js
@@ -101,9 +101,9 @@ function TestGenerator(g, expected_values_for_next,
   testThrow(function*() { return yield* g(); });
 
   if (g instanceof GeneratorFunction) {
-    testNext(function() { return new g(); });
-    testSend(function() { return new g(); });
-    testThrow(function() { return new g(); });
+    testNext(function() { return g(); });

[neis, 2016/01/14 10:55:23]

testNext(g) etc

+    testSend(function() { return g(); });
+    testThrow(function() { return g(); });
   }
 }
 
@@ -247,29 +247,6 @@ TestGenerator(function* g16() { yield "baz"; gc(); yield "qux"; },
               "foo",
               ["baz", "qux", undefined]);
 
-// Receivers.
-TestGenerator(

[neis, 2016/01/14 10:55:23]

This one should still be fine, shouldn't it?

-    function g17() {
-      function* g() { yield this.x; yield this.y; }
-      var o = { start: g, x: 1, y: 2 };
-      return o.start();
-    },
-    [1, 2, undefined],
-    "foo",
-    [1, 2, undefined]);
-
-TestGenerator(
-    function g18() {
-      function* g() { yield this.x; yield this.y; }
-      var iter = new g;
-      iter.x = 1;
-      iter.y = 2;
-      return iter;
-    },
-    [1, 2, undefined],
-    "foo",
-    [1, 2, undefined]);
-
 TestGenerator(
     function* g19() {
       var x = 1;