[turbofan] Fix overzealous reserving of lazy deopt space.

[turbofan] Fix overzealous reserving of lazy deopt space.

This fixes CodeGenerator::EnsureSpaceForLazyDeopt to no longer be
treated as a lazy deopt site in itself. Calls mark themselves as lazy
bailout sites in CodeGenerator::RecordCallPosition, which suffices.

R=jarin@chromium.org

Committed: https://crrev.com/d4a74f08d29684ba50362fb78c5a716b1f44e6cb
Cr-Commit-Position: refs/heads/master@{#29069}

[Jarin, 2015-06-17 05:11:10]

lgtm

[Michael Starzinger, 2015-06-17 07:42:13]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2015-06-17 07:42:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1186353003/1

[commit-bot: I haz the power, 2015-06-17 07:43:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-17 07:43:51]

Patchset 1 (id:??) landed as
https://crrev.com/d4a74f08d29684ba50362fb78c5a716b1f44e6cb
Cr-Commit-Position: refs/heads/master@{#29069}