Relax test expectations to appease mac build.

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11272029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/json-recursive.js

@@ -42,7 +42,7 @@ assertThrows(function() { rec(1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4) },
              RangeError);
 
 
-var depth1 = 2048;
+var depth1 = 1500;
 var depth2 = 10000;
 var deepArray = [];
 for (var i = 0; i < depth1; i++) deepArray = [deepArray];