[parser] Refactor parser and preparser traits

This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N

Committed: https://crrev.com/8133ab4c1a7405b52f5146c22bbacaabf9a22ae1
Cr-Commit-Position: refs/heads/master@{#38767}

[nickie, 2016-08-19 13:24:03]

Description was changed from

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N
==========

to

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N
==========

[nickie, 2016-08-19 13:24:14]

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

[commit-bot: I haz the power, 2016-08-19 13:24:19]

Dry run: 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, 2016-08-19 13:59:17]

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

[commit-bot: I haz the power, 2016-08-19 13:59:19]

Dry run: This issue passed the CQ dry run.

[adamk, 2016-08-19 18:01:57]

lgtm

[nickie, 2016-08-20 14:12:31]

The CQ bit was checked by nikolaos@chromium.org

[commit-bot: I haz the power, 2016-08-20 14:12:41]

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, 2016-08-20 14:36:06]

Description was changed from

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N
==========

to

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N
==========

[commit-bot: I haz the power, 2016-08-20 14:36:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-20 14:36:32]

Description was changed from

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N
==========

to

==========
This patch continues the refactoring of the traits objects, used by the
parser and the preparser, so that they contain the same set of methods,
with the same signatures.  It mainly flags some traits methods as const.
It also contains a small cosmetic change in the definition of CHECK_OK.

R=adamk@chromium.org, marja@chromium.org
BUG=
LOG=N

Committed: https://crrev.com/8133ab4c1a7405b52f5146c22bbacaabf9a22ae1
Cr-Commit-Position: refs/heads/master@{#38767}
==========

[commit-bot: I haz the power, 2016-08-20 14:36:33]

Patchset 1 (id:??) landed as
https://crrev.com/8133ab4c1a7405b52f5146c22bbacaabf9a22ae1
Cr-Commit-Position: refs/heads/master@{#38767}