Monomorphic and polymorphic ICs with cleared maps should not go megamorphic.

Monomorphic and polymorphic ICs with cleared maps should not go megamorphic.

BUG=v8:3663
TEST=cctest/test-heap/MonomorphicStaysMonomorphicAfterGC
LOG=N

Committed: https://crrev.com/9ffdae66e24b7d7a5aaa1699ed9302b6583e2aa6
Cr-Commit-Position: refs/heads/master@{#25882}

[ulan, 2014-12-18 12:38:01]

ulan@chromium.org changed reviewers:
+ mvstanton@chromium.org

[ulan, 2014-12-18 12:38:01]

Hi Michael, here is the fix we discussed. PTAL.

[mvstanton, 2014-12-18 12:44:55]

Seems pretty good!
Love the tests.
LGTM.

[ulan, 2014-12-18 12:45:45]

The CQ bit was checked by ulan@chromium.org

[commit-bot: I haz the power, 2014-12-18 12:46:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/816653002/1

[commit-bot: I haz the power, 2014-12-18 13:09:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-18 18:05:27]

Patchset 1 (id:??) landed as
https://crrev.com/9ffdae66e24b7d7a5aaa1699ed9302b6583e2aa6
Cr-Commit-Position: refs/heads/master@{#25882}