Revert "Get rid of ConvertFieldToDescriptor and simplify related code."

R=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22999048

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16297 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Snapshot i18n Javascript code

BUG=v8:2745
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23304005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16298 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Prepare push to trunk.  Now working on version 3.21.4.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23232008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16299 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add --trace-hydrogen-filter flag.

The flag restricts hydrogen.cfg output to functions passing the filter,
similar to what --hydrogen-filter does for optimization in general.

This is useful for investigating large repro cases where tracing all
functions would lead to an impractically large hydrogen.cfg file, but
restricting optimization using --hydrogen-filter is undesirable
(e.g. because it might cause the issue to no longer reproduce).

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/22926025

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16302 ce2b1a6d-e550-0410-aec6-3dcde31c8c00