Fix subtyping check on number

pkg/dev_compiler/test/browser/language_tests.js

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 define(['dart_sdk', 'async_helper', 'expect', 'unittest', 'is', 'require'],
       function(dart_sdk, async_helper, expect, unittest, is, require) {
   'use strict';
 
   async_helper = async_helper.async_helper;
   let minitest = expect.minitest;
@@ skipping 113 matching lines @@
       'double_int_to_string_test': fail,
       'dynamic_test': fail,
       'exception_test': fail,
       'execute_finally6_test': fail,
       'expect_test': fail,
       'extends_test_lib': fail,
       'external_test_10_multi': fail,
       'external_test_13_multi': fail,
       'external_test_20_multi': fail,
       'f_bounded_quantification3_test': fail,
-      'fast_method_extraction_test': fail,
       'field_increment_bailout_test': fail,
       'field_optimization3_test': fail,
       'final_syntax_test_08_multi': fail,
       'first_class_types_test': fail,
       'for_variable_capture_test': chrome_fail,
       'function_subtype0_test': fail,
       'function_subtype1_test': fail,
       'function_subtype2_test': fail,
       'function_subtype3_test': fail,
       'function_subtype_bound_closure0_test': fail,
@@ skipping 734 matching lines @@
 
     for (let action of unittest_tests) {
       try {
         action();
       } catch (e) {
         console.error("Caught error tying to setup test:", e);
       }
     }
   });
 });