Disable GC stress for mjsunit/fast-prototype.
Disable GC stress for mjsunit/fast-prototype.

R=yangguo@chromium.org
TEST=mjsunit/fast-prototype --gc-interval=500 --stress-compaction

Review URL: https://codereview.chromium.org/11534004

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@13190 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh