Make String.prototype.split honor limit when separator is empty.

test/mjsunit/string-split.js

 // Copyright 2008 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 79 matching lines @@
 assertArrayEquals(["a", "b"], "ab".split(/(?=)/));
 
 
 // For issue http://code.google.com/p/v8/issues/detail?id=924
 // Splitting the empty string is a special case.
 assertEquals([""], ''.split());
 assertEquals([""], ''.split(/./));
 assertEquals([], ''.split(/.?/));
 assertEquals([], ''.split(/.??/));
 assertEquals([], ''.split(/()()/));
+
+
+// Issue http://code.google.com/p/v8/issues/detail?id=929
+// (Splitting with empty separator and a limit.)
+
+function numberObj(num) {
+  return {valueOf: function() { return num; }};
+}
+
+assertEquals([], "abc".split("", 0));
+assertEquals([], "abc".split("", numberObj(0)));
+assertEquals(["a"], "abc".split("", 1));
+assertEquals(["a"], "abc".split("", numberObj(1)));
+assertEquals(["a", "b"], "abc".split("", 2));
+assertEquals(["a", "b"], "abc".split("", numberObj(2)));
+assertEquals(["a", "b", "c"], "abc".split("", 3));
+assertEquals(["a", "b", "c"], "abc".split("", numberObj(3)));
+assertEquals(["a", "b", "c"], "abc".split("", 4));
+assertEquals(["a", "b", "c"], "abc".split("", numberObj(4)));