Make a test run faster that is timing out on the ARM simulator.

Review URL: https://chromiumcodereview.appspot.com/10577032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/regress/regress-2185-2.js

@@ -27,7 +27,7 @@
 
 // These tests used to time out before this was fixed.
 
-var LEN = 1e5;
+var LEN = 3e4;
 
 function short() {
   var sum = 0;