Revert "Pass a Code object to Assembler::(set_)target_address_at for use by ool constant pool."

This reverts r19825 for breaking ia32.debug checks.

Original Review URL: https://codereview.chromium.org/183803022

Update serializer to be able to deal with ool constant pool.

TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/195373004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Eliminate extended mode, and other modes clean-up

Port r19800 (4402a23)

Original commit message:
- Merge LanguageMode and StrictModeFlag enums
- Make harmony-scoping depend only on strict mode
- Free some bits on the way
- Plus additional clean-up and renaming

BUG=

Review URL: https://codereview.chromium.org/195693002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19828 ce2b1a6d-e550-0410-aec6-3dcde31c8c00