The assertion failure I ran into is in Regress1516, where collector falls back to SCAVENGER, during x64.debug.check run.

Zheng Liu
zheng.z.liu@intel.com

Review URL: https://chromiumcodereview.appspot.com/10536199
Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11889 ce2b1a6d-e550-0410-aec6-3dcde31c8c00