Revert relanded strong property access CL

Revert relanded strong property access CL

Reason:
Regressions in various benchmarks.

Revert "Revert of Revert of [strong] Implement strong mode restrictions on property access (patchset #1 id:1 of https://codereview.chromium.org/1189153002/)"

This reverts commit 41405c0470d5b30ec5d22665ed9430c46b33624f.

Revert "X87: Revert of Revert of [strong] Implement strong mode restrictions on property access."

This reverts commit 48de5f4d6b356d8da9db4afa68814df28e4b575d.

Revert "Fix overlapping KeyedLoadIC bitfield."

This reverts commit 4e6c956abfbfcd8ae193e6bb279cf96997b14e20.

Revert "MIPS64: Fix 'Revert of Revert of [strong] Implement strong mode restrictions on property access'."

This reverts commit 74f97b0d2a4a5102c2817c95139e94ebae900377.

BUG=

Committed: https://crrev.com/4ac7be56568f0ac71e7bf10e8bec33c33893e5b5
Cr-Commit-Position: refs/heads/master@{#29166}

[conradw, 2015-06-19 16:44:02]

conradw@chromium.org changed reviewers:
+ rossberg@chromium.org

[conradw, 2015-06-19 16:44:02]

conradw@chromium.org changed reviewers:
+ rossberg@chromium.org

[conradw, 2015-06-19 16:44:03]

PTAL

[conradw, 2015-06-19 16:44:03]

PTAL

[rossberg, 2015-06-19 16:44:28]

LGTM (rubberstamp)

[conradw, 2015-06-19 16:44:38]

The CQ bit was checked by conradw@chromium.org

[commit-bot: I haz the power, 2015-06-19 16:44:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1199493002/1

[commit-bot: I haz the power, 2015-06-19 19:00:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-19 19:00:59]

Patchset 1 (id:??) landed as
https://crrev.com/4ac7be56568f0ac71e7bf10e8bec33c33893e5b5
Cr-Commit-Position: refs/heads/master@{#29166}