Make mjsunit/random-bit-correlations more predictable.

test/mjsunit/random-bit-correlations.js

Index: test/mjsunit/random-bit-correlations.js
diff --git a/test/mjsunit/random-bit-correlations.js b/test/mjsunit/random-bit-correlations.js
index 0561b544ba05d7abc02c70f1e593d77428aa598b..8322cfac4c0cac399bea4f019ff5f0deaee51587 100644
--- a/test/mjsunit/random-bit-correlations.js
+++ b/test/mjsunit/random-bit-correlations.js
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --random-seed=12
+// Flags: --random-seed=12 --nostress-opt --noalways-opt --predictable
 
 (function() {
   var kHistory = 2;