Mark test-log/EquivalenceOfLoggingAndTraversal as flaky

It was marked as flaky before r16296 where it was skipped because of crashed. The crash is fixed but the test stil flakes.

BUG=v8:2857
TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/22865044

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16332 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Get rid of ConvertFieldToDescriptor.
This CL additionally fixes up the attributes for FIELD and CONSTANT in SetLocalPropertyIgnoreAttributes.

R=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23252008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16333 ce2b1a6d-e550-0410-aec6-3dcde31c8c00