Disable some tests for nacl runs.

test/mjsunit/mjsunit.status

 # Copyright 2012 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 210 matching lines @@
 debug-liveedit-check-stack: SKIP
 debug-liveedit-stack-padding: SKIP
 debug-liveedit-restart-frame: SKIP
 debug-liveedit-double-call: SKIP
 
 # This test dumps core for arm.debug, so no reason to expect it to work
 # for NaCl. The other three fuzz-natives tests seem to run fine.
 # As noted above none of them are run in the arm.debug case.
 fuzz-natives-part4: SKIP
 
+# NaCl builds have problems with this test since Pepper_28.
+# V8 Issue 2786
+math-exp-precision: SKIP
+
 # Requires bigger stack size in the Genesis and if stack size is increased,
 # the test requires too much time to run.  However, the problem test covers
 # should be platform-independent.
 regress/regress-1132: SKIP
 
 # Poor performance for NaCl V8 causes an assertion failure for this test.
 regress/regress-165637: SKIP
 
 # Skip long running test that times out in debug mode and goes OOM on NaCl.
 regress/regress-crbug-160010: SKIP