Fix GN build after r23442.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/514583003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove old changes lowering code and convert test to use new changes lowering code.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/515433003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23449 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[Auto-roll] Bump up version to 3.29.22.0

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/507353002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23450 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'