Revert of for-of should throw if result object is not an object

test/mjsunit/es6/iteration-semantics.js

Index: test/mjsunit/es6/iteration-semantics.js
diff --git a/test/mjsunit/es6/iteration-semantics.js b/test/mjsunit/es6/iteration-semantics.js
index 57c558de64ad0b0042919213129699981eb8da53..544c94d915c21029ccdba9c92eee0441500a2c06 100644
--- a/test/mjsunit/es6/iteration-semantics.js
+++ b/test/mjsunit/es6/iteration-semantics.js
@@ -200,11 +200,9 @@
                            // Done.
                            { value: 4, done: 42 }])));
 // Results that are not objects.
-assertThrows(function() {
-  assertEquals([undefined, undefined, undefined],
-               fold(append, [],
-                    results([10, "foo", /qux/, { value: 37, done: true }])));
-}, TypeError);
+assertEquals([undefined, undefined, undefined],
+             fold(append, [],
+                  results([10, "foo", /qux/, { value: 37, done: true }])));
 // Getters (shudder).
 assertEquals([1, 2],
              fold(append, [],
@@ -336,25 +334,3 @@
   }));
 }
 assertEquals(45, fold(sum, 0, poison_proxy_after(integers_until(10), 10)));
-
-
-function test_iterator_result_object_non_object(value, descr) {
-  var arr = [];
-  var ex;
-  var message = 'Iterator result ' + (descr || value) + ' is not an object';
-  try {
-    fold(append, arr,
-         results([{value: 1}, {}, value, {value: 2}, {done: true}]));
-  } catch (e) {
-    ex = e;
-  }
-  assertInstanceof(ex, TypeError);
-  assertEquals(message, ex.message);
-  assertArrayEquals([1, undefined], arr);
-}
-test_iterator_result_object_non_object(null);
-test_iterator_result_object_non_object(undefined);
-test_iterator_result_object_non_object(42);
-test_iterator_result_object_non_object('abc');
-test_iterator_result_object_non_object(false);
-test_iterator_result_object_non_object(Symbol('x'), 'Symbol(x)');