Do Else() first for JoinContinuation() in IfBuilder.

This is required to make sure that environments are correct
for joined continuations.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/52593008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM: Use loop to initialize locals when optimizing for size.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/52163002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00