[ast] Change printing of {Variable::maybe_assigned}.

[ast] Change printing of {Variable::maybe_assigned}.

This reverses the printing scheme for the flag in question to make it
print the "positive" analysis results (i.e. variable never assigned)
instead of the "negative" results (i.e. variable maybe assigned). This
helps to spot false-positives which are much more dangerous in practice
compared to missed optimization opportunities.

R=neis@chromium.org

Committed: https://crrev.com/1a36eaea4b6d788fef2b3073d327a7fc33849acd
Cr-Commit-Position: refs/heads/master@{#40993}

[Michael Starzinger, 2016-11-15 13:14:34]

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

[commit-bot: I haz the power, 2016-11-15 13:14:37]

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

[neis, 2016-11-15 13:15:23]

lgtm

[commit-bot: I haz the power, 2016-11-15 13:38:42]

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

[commit-bot: I haz the power, 2016-11-15 13:38:44]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-11-15 13:48:15]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-11-15 13:48:22]

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, 2016-11-15 13:51:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 22:34:06]

Description was changed from

==========
[ast] Change printing of {Variable::maybe_assigned}.

This reverses the printing scheme for the flag in question to make it
print the "positive" analysis results (i.e. variable never assigned)
instead of the "negative" results (i.e. variable maybe assigned). This
helps to spot false-positives which are much more dangerous in practice
compared to missed optimization opportunities.

R=neis@chromium.org
==========

to

==========
[ast] Change printing of {Variable::maybe_assigned}.

This reverses the printing scheme for the flag in question to make it
print the "positive" analysis results (i.e. variable never assigned)
instead of the "negative" results (i.e. variable maybe assigned). This
helps to spot false-positives which are much more dangerous in practice
compared to missed optimization opportunities.

R=neis@chromium.org

Committed: https://crrev.com/1a36eaea4b6d788fef2b3073d327a7fc33849acd
Cr-Commit-Position: refs/heads/master@{#40993}
==========

[commit-bot: I haz the power, 2016-11-17 22:34:09]

Patchset 1 (id:??) landed as
https://crrev.com/1a36eaea4b6d788fef2b3073d327a7fc33849acd
Cr-Commit-Position: refs/heads/master@{#40993}