ARM: Optimize shifts by constant integers, especially shifts by zero or arithmetic shifts.  Updated to also eliminate ASR followed by LSL as per part two of http://codereview.chromium.org/1987008/show Review URL: http://codereview.chromium.org/2054007
ARM: Optimize shifts by constant integers, especially
shifts by zero or arithmetic shifts.  Updated to also
eliminate ASR followed by LSL as per part two of
http://codereview.chromium.org/1987008/show
Review URL: http://codereview.chromium.org/2054007

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@4641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh