Rollback to Version 3.28.4 (based on bleeding_edge revision r22031)

This reverts commit 0109ec74310eff0884ecf09a4c0086e26480ce2b.

BUG=389198
TBR=marja@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/352583008

git-svn-id: https://v8.googlecode.com/svn/trunk@22052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.28.4.1 (merged r22050)

Revert "ARM: Use the shifter operand to merge in previous shift instructions."

BUG=389198
LOG=N
TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/358113003

git-svn-id: https://v8.googlecode.com/svn/trunk@22053 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk