ARM: Fix the debugger using wrong break stub for slot breaks

Porting r7203 to 2.3 branch.
Review URL: http://codereview.chromium.org/6676063

git-svn-id: http://v8.googlecode.com/svn/branches/2.3@7235 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2 files changed