Enable ES6 iteration by default

test/mjsunit/harmony/iteration-syntax.js

-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Flags: --harmony-iteration --harmony-scoping --use-strict
-
-// Test for-of syntax.
-
-"use strict";
-
-function f() { for (x of y) { } }
-function f() { for (var x of y) { } }
-function f() { for (let x of y) { } }
-
-assertThrows("function f() { for (x of) { } }", SyntaxError);
-assertThrows("function f() { for (x of y z) { } }", SyntaxError);
-assertThrows("function f() { for (x of y;) { } }", SyntaxError);
-
-assertThrows("function f() { for (var x of) { } }", SyntaxError);
-assertThrows("function f() { for (var x of y z) { } }", SyntaxError);
-assertThrows("function f() { for (var x of y;) { } }", SyntaxError);
-
-assertThrows("function f() { for (let x of) { } }", SyntaxError);
-assertThrows("function f() { for (let x of y z) { } }", SyntaxError);
-assertThrows("function f() { for (let x of y;) { } }", SyntaxError);
-
-assertThrows("function f() { for (of y) { } }", SyntaxError);
-assertThrows("function f() { for (of of) { } }", SyntaxError);
-assertThrows("function f() { for (var of y) { } }", SyntaxError);
-assertThrows("function f() { for (var of of) { } }", SyntaxError);
-assertThrows("function f() { for (let of y) { } }", SyntaxError);
-assertThrows("function f() { for (let of of) { } }", SyntaxError);
-
-assertThrows("function f() { for (x = 3 of y) { } }", SyntaxError);
-assertThrows("function f() { for (var x = 3 of y) { } }", SyntaxError);
-assertThrows("function f() { for (let x = 3 of y) { } }", SyntaxError);
-
-
-// Alack, this appears to be valid.
-function f() { for (of of y) { } }
-function f() { for (let of of y) { } }
-function f() { for (var of of y) { } }
-
-// This too, of course.
-function f() { for (of in y) { } }
-function f() { for (var of in y) { } }
-function f() { for (let of in y) { } }