Merged r11533, r11570 into 3.10 branch.

Properly set ElementsKind of empty FAST_DOUBLE_ELEMENTS arrays when transitioning.

Always transition empty FAST_DOUBLE_ARRAYs on push.

BUG=chromium:117409,chromium:128018
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10387211

git-svn-id: http://v8.googlecode.com/svn/branches/3.10@11605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
6 files changed