Revert "TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows …

Revert "TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows to have several entries for the same property name."
Revert "Fix for an assertion failure in Map::FindTransitionToField(...). Appeared after r25136."

This revert is made in order to revert r25099 which potentially causes renderer hangs.

R=verwaest@chromium.org

Committed: https://chromium.googlesource.com/v8/v8/+/2e38f3391116d87ec3745982b24a0279dcefe2d7

[Igor Sheludko, 2014-11-13 13:30:34]

ishell@chromium.org changed reviewers:
+ verwaest@chromium.org

[Igor Sheludko, 2014-11-13 13:30:35]

PTAL

[Toon Verwaest, 2014-11-13 13:39:21]

rubberstamp lgtm

[Igor Sheludko, 2014-11-13 15:31:15]

Committed patchset #1 (id:1) manually as
2e38f3391116d87ec3745982b24a0279dcefe2d7 (presubmit successful).