X87: Reimplement Maps and Sets in JS

X87: Reimplement Maps and Sets in JS

port 909500aa1db9789b68e101045a6359a7fcb30e83 (r27605)

original commit message:
    Previously, the only optimized code path for Maps and Sets was for String keys.
    This was achieved through an implementation of various complex operations
    in Hydrogen. This approach was neither scalable nor forward-compatible.

    This patch adds the necessary intrinsics to implement Maps and Sets almost entirely
    in JS. The added intrinsics are:

      %_FixedArrayGet
      %_FixedArraySet
      %_TheHole
      %_JSCollectionGetTable
      %_StringGetRawHashField

    With these additions, as well as a few changes to what's exposed as runtime functions,
    most of the C++ code backing Maps and Sets is gone (including both runtime code in
    objects.cc and Crankshaft in hydrogen.cc).

BUG=

Committed: https://crrev.com/56600a35a49ffa5abcba66b14839089de3589ad9
Cr-Commit-Position: refs/heads/master@{#27681}

[chunyang.dai, 2015-04-09 01:29:49]

chunyang.dai@intel.com changed reviewers:
+ weiliang.lin@intel.com

[chunyang.dai, 2015-04-09 01:29:50]

PTAL.

[Weiliang, 2015-04-09 01:42:21]

The CQ bit was checked by weiliang.lin@intel.com

[Weiliang, 2015-04-09 01:42:22]

lgtm

[commit-bot: I haz the power, 2015-04-09 01:42:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1066373002/1

[commit-bot: I haz the power, 2015-04-09 02:24:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-09 02:24:29]

Patchset 1 (id:??) landed as
https://crrev.com/56600a35a49ffa5abcba66b14839089de3589ad9
Cr-Commit-Position: refs/heads/master@{#27681}

[Michael Hablich, 2015-04-09 06:49:11]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1073723002/ by hablich@chromium.org.

The reason for reverting is: Reverting as it resulted in a closed waterfall..