Mark i18n functions as native and set proper names

src/extensions/i18n/number-format.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 219 matching lines @@
 
     if (format.resolved.hasOwnProperty('maximumSignificantDigits')) {
       defineWECProperty(result, 'maximumSignificantDigits',
                         format.resolved.maximumSignificantDigits);
     }
 
     return result;
   },
   ATTRIBUTES.DONT_ENUM
 );
+%FunctionSetName(Intl.NumberFormat.prototype.resolvedOptions,
+                 'resolvedOptions');
 %FunctionRemovePrototype(Intl.NumberFormat.prototype.resolvedOptions);
+%SetNativeFlag(Intl.NumberFormat.prototype.resolvedOptions);
 
 
 /**
  * Returns the subset of the given locale list for which this locale list
  * has a matching (possibly fallback) locale. Locales appear in the same
  * order in the returned list as in the input list.
  * Options are optional parameter.
  */
 %SetProperty(Intl.NumberFormat, 'supportedLocalesOf', function(locales) {
     if (%_IsConstructCall()) {
       throw new TypeError(ORDINARY_FUNCTION_CALLED_AS_CONSTRUCTOR);
     }
 
     return supportedLocalesOf('numberformat', locales, arguments[1]);
   },
   ATTRIBUTES.DONT_ENUM
 );
+%FunctionSetName(Intl.NumberFormat.supportedLocalesOf, 'supportedLocalesOf');
 %FunctionRemovePrototype(Intl.NumberFormat.supportedLocalesOf);
+%SetNativeFlag(Intl.NumberFormat.supportedLocalesOf);
 
 
 /**
  * Returns a String value representing the result of calling ToNumber(value)
  * according to the effective locale and the formatting options of this
  * NumberFormat.
  */
 function formatNumber(formatter, value) {
   native function NativeJSInternalNumberFormat();
 
@@ skipping 12 matching lines @@
  */
 function parseNumber(formatter, value) {
   native function NativeJSInternalNumberParse();
 
   return NativeJSInternalNumberParse(formatter.formatter, String(value));
 }
 
 
 addBoundMethod(Intl.NumberFormat, 'format', formatNumber, 1);
 addBoundMethod(Intl.NumberFormat, 'v8Parse', parseNumber, 1);