ARM: make predictable code size scope more precise in DoDeferredInstanceOfKnownGlobal.

ARM: make predictable code size scope more precise in DoDeferredInstanceOfKnownGlobal.

We block constant pool up to the call stub instruction, but the check for code size
includes the next instruction after the call instruction. That instruction can
emit constant pool.

BUG=chromium:500831
LOG=NO
TEST=mjsunit/regress/regress-500831

Committed: https://crrev.com/fda60dc2148093909323d85b7be0fa8a05c1ec39
Cr-Commit-Position: refs/heads/master@{#29132}

[ulan, 2015-06-18 14:53:02]

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

[ulan, 2015-06-18 14:53:03]

PTAL

[Benedikt Meurer, 2015-06-19 04:28:41]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2015-06-19 04:28:41]

lgtm

[commit-bot: I haz the power, 2015-06-19 04:28:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1189123003/20001

[commit-bot: I haz the power, 2015-06-19 04:54:48]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-19 04:55:03]

Patchset 2 (id:??) landed as
https://crrev.com/fda60dc2148093909323d85b7be0fa8a05c1ec39
Cr-Commit-Position: refs/heads/master@{#29132}