[stubs] Cleanup usages of lambdas in CodeStubAssembler and friends.

[stubs] Cleanup usages of lambdas in CodeStubAssembler and friends.

The changes are:
1) Pass lambdas as const references to avoid unnecessary copying.
2) Remove CodeStubAssembler* parameter from loop bodies and let the lambdas
   capture the right assembler instead. It makes the loop body code look
   uniform with the surrounding code and unblocks splitting of a CSA
   into different classes.

BUG=

Committed: https://crrev.com/3d618949e18fdfeb36f8918f061df3f533e923b8
Cr-Commit-Position: refs/heads/master@{#41482}

[Igor Sheludko, 2016-12-02 19:36:47]

The CQ bit was checked by ishell@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-02 19:36:51]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Igor Sheludko, 2016-12-02 19:36:58]

ishell@chromium.org changed reviewers:
+ danno@chromium.org

[Igor Sheludko, 2016-12-02 19:36:58]

PTAL

[commit-bot: I haz the power, 2016-12-02 20:02:40]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-02 20:02:41]

Dry run: This issue passed the CQ dry run.

[danno, 2016-12-05 10:56:47]

lgtm

[Igor Sheludko, 2016-12-05 11:00:36]

The CQ bit was checked by ishell@chromium.org

[commit-bot: I haz the power, 2016-12-05 11:00:46]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-05 11:28:49]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480935636704720, "parent_rev":
"198bc3f1027fdefaa7e35269198be2833d25ae5d", "commit_rev":
"323ccfb0e51d1099420115da50414287dce70790"}

[commit-bot: I haz the power, 2016-12-05 11:28:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-05 11:29:24]

Description was changed from

==========
[stubs] Cleanup usages of lambdas in CodeStubAssembler and friends.

The changes are:
1) Pass lambdas as const references to avoid unnecessary copying.
2) Remove CodeStubAssembler* parameter from loop bodies and let the lambdas
   capture the right assembler instead. It makes the loop body code look
   uniform with the surrounding code and unblocks splitting of a CSA
   into different classes.

BUG=
==========

to

==========
[stubs] Cleanup usages of lambdas in CodeStubAssembler and friends.

The changes are:
1) Pass lambdas as const references to avoid unnecessary copying.
2) Remove CodeStubAssembler* parameter from loop bodies and let the lambdas
   capture the right assembler instead. It makes the loop body code look
   uniform with the surrounding code and unblocks splitting of a CSA
   into different classes.

BUG=

Committed: https://crrev.com/3d618949e18fdfeb36f8918f061df3f533e923b8
Cr-Commit-Position: refs/heads/master@{#41482}
==========

[commit-bot: I haz the power, 2016-12-05 11:29:25]

Patchset 1 (id:??) landed as
https://crrev.com/3d618949e18fdfeb36f8918f061df3f533e923b8
Cr-Commit-Position: refs/heads/master@{#41482}