Add more systematic tests for comparisons.

Add more systematic tests for comparisons.

Because, well, JavaScript is tricky and compilers like folding.

R=mstarzinger@chromium.org
BUG=

Committed: https://crrev.com/1b400a14cb0e3d57e87a190520f6b103858e33d1
Cr-Commit-Position: refs/heads/master@{#27668}

[Michael Starzinger, 2015-04-08 12:09:27]

LGTM (rubber-stamped). But could we also check-in the generator script somewhere
somehow?

[titzer, 2015-04-08 12:50:39]

On 2015/04/08 12:09:27, Michael Starzinger wrote:
> LGTM (rubber-stamped). But could we also check-in the generator script
somewhere
> somehow?

Done.

[titzer, 2015-04-08 12:50:45]

The CQ bit was checked by titzer@chromium.org

[titzer, 2015-04-08 12:50:46]

The patchset sent to the CQ was uploaded after l-g-t-m from
mstarzinger@chromium.org
Link to the patchset: https://codereview.chromium.org/1069673002/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-04-08 12:50:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1069673002/20001

[commit-bot: I haz the power, 2015-04-08 13:15:38]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-04-08 13:15:50]

Patchset 2 (id:??) landed as
https://crrev.com/1b400a14cb0e3d57e87a190520f6b103858e33d1
Cr-Commit-Position: refs/heads/master@{#27668}