Adding batch file and scripts to get new /analyze warnings.

Adding batch file and scripts to get new /analyze warnings.

This set of tools makes it easy and efficient to explore new /analyze
warnings, looking for new warnings.

If you set ANALYZE_REPO and then run retrieve_latest_warnings.bat
then it will retrieve the latest /analyze build results, summarize
them, compare them to the previous results (if any), and sync the
requested repo (git checkout and gclient sync) to the specified
changelist. The new warnings can then be copied to the VS output
window (using fromclip.exe, available separately) for easy browsing.

BUG=427616
Committed: https://crrev.com/273467edbc595491263cc799f810615e7fafde5a
Cr-Commit-Position: refs/heads/master@{#324707}

[brucedawson, 2015-04-03 20:36:49]

brucedawson@chromium.org changed reviewers:
+ cpu@chromium.org

[brucedawson, 2015-04-03 20:36:49]

I decided to put my /analyze warning-retrieval code into a CR just so that it is
safely backed up. It passes the presubmit checks but is otherwise pretty sloppy
code - stream of consciousness coding as I experimented.

I'll probably clean it up slightly and check it in at some point, and then
create a chromium.org page to explain how to use it.

FYI.

[cpu_(ooo_6.6-7.5), 2015-04-09 00:01:16]

turns out I don't know how to read python, but I can OK this CL in any case.

So two things
1- a readme file with some brief explanation of what this new directory is,
could be a single para long and a link to some doc or it could be 3 para

2- an OWNERS file, with you and somebody else of your choice.

[cpu_(ooo_6.6-7.5), 2015-04-10 00:59:29]

lgtm

[cpu_(ooo_6.6-7.5), 2015-04-10 00:59:32]

The CQ bit was checked by cpu@chromium.org

[commit-bot: I haz the power, 2015-04-10 01:00:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1061663002/20001

[commit-bot: I haz the power, 2015-04-10 01:11:36]

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

[commit-bot: I haz the power, 2015-04-10 01:11:36]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[brucedawson, 2015-04-10 22:07:14]

The CQ bit was checked by brucedawson@chromium.org

[brucedawson, 2015-04-10 22:07:14]

The patchset sent to the CQ was uploaded after l-g-t-m from cpu@chromium.org
Link to the patchset: https://codereview.chromium.org/1061663002/#ps60001
(title: "Set executable bit on retrieve_latest_warnings.bat.")

[commit-bot: I haz the power, 2015-04-10 22:08:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1061663002/60001

[commit-bot: I haz the power, 2015-04-10 23:08:07]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-04-10 23:10:51]

Patchset 4 (id:??) landed as
https://crrev.com/273467edbc595491263cc799f810615e7fafde5a
Cr-Commit-Position: refs/heads/master@{#324707}