Add support for DateTimeFormat.formatToParts

test/intl/assert.js

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // 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.
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 //       copyright notice, this list of conditions and the following
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 //       with the distribution.
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 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
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 // "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.
 
 // Some methods are taken from v8/test/mjsunit/mjsunit.js
 
+
+function classOf(object) {
+   // Argument must not be null or undefined.
+   var string = Object.prototype.toString.call(object);
+   // String has format [object <ClassName>].
+   return string.substring(8, string.length - 1);
+}
+
 /**
  * Compares two objects for key/value equality.
  * Returns true if they are equal, false otherwise.
  */
 function deepObjectEquals(a, b) {
   var aProps = Object.keys(a);
   aProps.sort();
   var bProps = Object.keys(b);
   bProps.sort();
   if (!deepEquals(aProps, bProps)) {
@@ skipping 134 matching lines @@
     var actualTypeName = null;
     var actualConstructor = Object.prototypeOf(obj).constructor;
     if (typeof actualConstructor == "function") {
       actualTypeName = actualConstructor.name || String(actualConstructor);
     }
     throw new Error('Object <' + obj + '> is not an instance of <' +
          (type.name || type) + '>' +
          (actualTypeName ? ' but of < ' + actualTypeName + '>' : ''));
   }
 }