Remove certain non-standard properties from Intl

test/intl/no-extra-flag.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --no-intl-extra
+
+// Turning off the flag removes the non-standard properties
+
+var dtf = new Intl.DateTimeFormat(['en']);
+assertFalse('v8Parse' in dtf);
+assertFalse('resolved' in dtf);
+assertFalse(!!dtf.resolved && 'pattern' in dtf.resolved);
+
+var nf = new Intl.NumberFormat(['en']);
+assertFalse('v8Parse' in nf);
+assertFalse('resolved' in nf);
+assertFalse(!!nf.resolved && 'pattern' in nf.resolved);
+
+var col = new Intl.Collator(['en']);
+assertFalse('resolved' in col);
+
+var br = new Intl.v8BreakIterator(['en']);
+assertFalse('resolved' in br);