[turbofan] Remove invalid typing rules.

[turbofan] Remove invalid typing rules.

Drop the typing rules for the machine operators and replace them
with UNREACHABLE. These typing rules were never correct and there's
also no need to have those rules at all.

Drive-by-fix: Remove the extremely annoying test-simplified-lowering.cc
file, which is not very useful, but consumes a large amount of time to
keep it compiling and passing. Instead we should introduce appropriate
tests for the SimplifiedLowering that also test something meaningful
w/o just cementing the implementation.

R=jarin@chromium.org
BUG=v8:5267
Committed: https://crrev.com/285e1e157a63c929cfb9d9466333c9798df6bb57
Cr-Commit-Position: refs/heads/master@{#38970}

[Benedikt Meurer, 2016-08-29 08:58:05]

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

[commit-bot: I haz the power, 2016-08-29 08:58:13]

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

[Benedikt Meurer, 2016-08-29 08:58:36]

Hey Jaro,

Dead code should be dead^WKill all the defensive programming.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-08-29 08:59:42]

lgtm

[Benedikt Meurer, 2016-08-29 09:00:07]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2016-08-29 09:00:11]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-08-29 09:00:15]

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, 2016-08-29 09:20:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-29 09:20:13]

Description was changed from

==========
[turbofan] Remove invalid typing rules.

Drop the typing rules for the machine operators and replace them
with UNREACHABLE. These typing rules were never correct and there's
also no need to have those rules at all.

Drive-by-fix: Remove the extremely annoying test-simplified-lowering.cc
file, which is not very useful, but consumes a large amount of time to
keep it compiling and passing. Instead we should introduce appropriate
tests for the SimplifiedLowering that also test something meaningful
w/o just cementing the implementation.

R=jarin@chromium.org
BUG=v8:5267
==========

to

==========
[turbofan] Remove invalid typing rules.

Drop the typing rules for the machine operators and replace them
with UNREACHABLE. These typing rules were never correct and there's
also no need to have those rules at all.

Drive-by-fix: Remove the extremely annoying test-simplified-lowering.cc
file, which is not very useful, but consumes a large amount of time to
keep it compiling and passing. Instead we should introduce appropriate
tests for the SimplifiedLowering that also test something meaningful
w/o just cementing the implementation.

R=jarin@chromium.org
BUG=v8:5267

Committed: https://crrev.com/285e1e157a63c929cfb9d9466333c9798df6bb57
Cr-Commit-Position: refs/heads/master@{#38970}
==========

[commit-bot: I haz the power, 2016-08-29 09:20:13]

Patchset 1 (id:??) landed as
https://crrev.com/285e1e157a63c929cfb9d9466333c9798df6bb57
Cr-Commit-Position: refs/heads/master@{#38970}