Run all message tests with a variant that forces preparsing

Run all message tests with a variant that forces preparsing

This will make sure that message tests cover both the parser and preparser
paths, just as we do for parsing-related cctests.

BUG=v8:4372
LOG=n

Committed: https://crrev.com/802ea71e7c1627a934febeee8868ff4344d2dfd1
Cr-Commit-Position: refs/heads/master@{#32307}

[adamk, 2015-11-25 00:10:53]

adamk@chromium.org changed reviewers:
+ machenbach@chromium.org, rossberg@chromium.org

[adamk, 2015-11-25 00:10:53]

machenbach for testrunner, rossberg for whether --min-preparse-length=0 is the
right trigger

[rossberg, 2015-11-25 17:38:47]

lgtm

[adamk, 2015-11-25 20:02:02]

Thanks for the review. I guess I'll wait for machenbach to return before landing
(since the way I've implemented this in the testcfg is a bit hacky).

[Michael Achenbach, 2015-11-25 20:44:44]

lgtm - give it a shot. Not sure if there might be unintended effects. You'll now
always add the preparser variant. Also when it is filtered away at the command
line. But I think that's ok.

[adamk, 2015-11-25 20:45:59]

The CQ bit was checked by adamk@chromium.org

[commit-bot: I haz the power, 2015-11-25 20:46:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1469383004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1469383004/1

[commit-bot: I haz the power, 2015-11-25 21:02:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-25 21:02:24]

Description was changed from

==========
Run all message tests with a variant that forces preparsing

This will make sure that message tests cover both the parser and preparser
paths, just as we do for parsing-related cctests.

BUG=v8:4372
LOG=n
==========

to

==========
Run all message tests with a variant that forces preparsing

This will make sure that message tests cover both the parser and preparser
paths, just as we do for parsing-related cctests.

BUG=v8:4372
LOG=n

Committed: https://crrev.com/802ea71e7c1627a934febeee8868ff4344d2dfd1
Cr-Commit-Position: refs/heads/master@{#32307}
==========

[commit-bot: I haz the power, 2015-11-25 21:02:25]

Patchset 1 (id:??) landed as
https://crrev.com/802ea71e7c1627a934febeee8868ff4344d2dfd1
Cr-Commit-Position: refs/heads/master@{#32307}