[builtins] Migrate Number constructor similar to String constructor.

test/mjsunit/stack-traces.js

 // Copyright 2009 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 273 matching lines @@
     ["collectStackTrace"]);
 testTrace("testStrippedCustomError", testStrippedCustomError, ["hep-hey"],
     ["new CustomError", "collectStackTrace"]);
 testTrace("testClassNames", testClassNames,
           ["new MyObj", "MyObjCreator.Create"], ["as Create"]);
 testCallerCensorship();
 testUnintendedCallerCensorship();
 testErrorsDuringFormatting();
 
 testTraceNativeConversion(String);  // Does ToString on argument.
-testTraceNativeConversion(Number);  // Does ToNumber on argument.
 testTraceNativeConversion(RegExp);  // Does ToString on argument.
 
 testTraceNativeConstructor(String);  // Does ToString on argument.
-testTraceNativeConstructor(Number);  // Does ToNumber on argument.
 testTraceNativeConstructor(RegExp);  // Does ToString on argument.
 
 // Omitted because QuickSort has builtins object as receiver, and is non-native
 // builtin.
 testOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
                                                      (b < a) - (a < b); });
                    }, "QuickSort");
 
 // Omitted because ADD from runtime.js is non-native builtin.
 testOmittedBuiltin(function(){ thrower + 2; }, "ADD");
@@ skipping 52 matching lines @@
 
 my_error = {};
 Object.preventExtensions(my_error);
 assertThrows(function() { Error.captureStackTrace(my_error); });
 
 var fake_error = {};
 my_error = new Error();
 var stolen_getter = Object.getOwnPropertyDescriptor(my_error, 'stack').get;
 Object.defineProperty(fake_error, 'stack', { get: stolen_getter });
 assertEquals(undefined, fake_error.stack);