Synchronize with r15594.

test/intl/number-format/default-locale.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: --expose_gc
+// Constructing NumberFormat with no locale arguments or with []
+// creates one with default locale.
 
-p1 =  { };
-p2 =  { };
-p3 =  { x : 1 };
-p2.__proto__ = p3
-p1.__proto__ = p2
+var nf = new Intl.NumberFormat([]);
 
-// Normalize p1.
-p1.z = 1
-delete p1.z
+var options = nf.resolvedOptions();
 
-// Make sure all objects are in old space.
-for (var i = 0; i < 10; i++) gc();
+// Check it's none of these first.
+assertFalse(options.locale === 'und');
+assertFalse(options.locale === '');
+assertFalse(options.locale === undefined);
 
-function f2() {
-  p2.x;
-}
+// Then check for equality.
+assertEquals(options.locale, getDefaultLocale());
 
-function f1() {
-  return p1.x;
-}
-
-// Create load stub in p2.
-for (var i = 0; i < 10; i++) f2();
-
-// Create load stub in p2 for p1.
-for (var i = 0; i < 10; i++) f1();
-
-assertEquals(1, f1());
-
-p2.x = 2;
-
-assertEquals(2, f1());
+var nfNone = new Intl.NumberFormat();
+assertEquals(options.locale, nfNone.resolvedOptions().locale);