Only create arguments-maps in the bootstrapper, remove now obsolete ValueType flag.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/358363003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove SetOwnPropertyIgnoreAttribute uses from the bootstrapper

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/367763003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22241 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'