Remove certain non-standard properties from Intl

test/intl/number-format/format-is-bound.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
@@ skipping 10 matching lines @@
 // 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.
 
 // Create default NumberFormat.
 var nf = new Intl.NumberFormat();
 
+var beforeCount = Object.getOwnPropertyNames(nf).length;
+
 // Array we want to iterate, actual numbers are not important.
 var numberArray = [1, 2, 3];
 
 // It shouldn't throw.
 // The format() method should be properly bound to the nf object.
 numberArray.forEach(nf.format);
 
 // Formatting a number should work in a direct call.
 nf.format(12345);
 
 // Reading the format doesn't add any additional property keys
-assertEquals(1, Object.getOwnPropertyNames(nf).length);
+assertEquals(beforeCount, Object.getOwnPropertyNames(nf).length);