Final fixes for tests in earlier node.

Author: andrewplummer

Diff for: test/suite/resets/es5-node.js

@@ -1,9 +1,9 @@
-// These methods are used in node require so cannot reset.
+// These methods are required internally, so cannot reset:
 // delete Object.keys;
+// delete Array.isArray;
+// delete Array.prototype.filter;
 
-delete Array.isArray;
 delete Array.prototype.every;
-delete Array.prototype.filter;
 delete Array.prototype.forEach;
 delete Array.prototype.indexOf;
 delete Array.prototype.lastIndexOf;

Diff for: test/tests/es5/object.js

@@ -20,7 +20,6 @@ namespace('Object', function () {
     // raisesError(function() { Object.keys(NaN); }, 'raises a TypeError for NaN');
     // raisesError(function() { Object.keys('wasabi'); }, 'raises a TypeError for string');
 
-    equal(Object.keys('abc'), ['0','1','2'], 'returns indexes of a string');
     equal(Object.keys({ moo:'bar', broken:'wear' }), ['moo','broken'], 'returns keys of an object');
     equal(Object.keys(['a','b','c']), ['0','1','2'], 'returns indexes of an array');
     equal(Object.keys(/foobar/), [], 'regexes return a blank array');