Revert of [turbofan] Take the immediate size in account when narrowing ia32/x64 word comparison operators.

Revert of [turbofan] Take the immediate size in account when narrowing ia32/x64 word comparison operators. (patchset #2 id:20001 of https://codereview.chromium.org/1948453002/ )

Reason for revert:
Breaks WASM; please also add tests when relanding.

Original issue's description:
> [turbofan] Take the immediate size in account when narrowing ia32/x64 word comparison operators.
>
> Before this patch, we would emit a cmp or test with a memory operand only if both of the operands in the IR were loads. Now if either of them is a load and the other one is an immediate, we can use a memory operand if the load representation machine size is wide enough to represent the latter.
>
> Committed: https://crrev.com/a0543313dbd46b0c2e72c91ee3488a7dc6db73e4
> Cr-Commit-Position: refs/heads/master@{#36009}

TBR=bmeurer@chromium.org,jfb@chromium.org,epertoso@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Committed: https://crrev.com/3b7ff999f3a9b33945b77787ba85251e42939ac0
Cr-Commit-Position: refs/heads/master@{#36066}

[titzer, 2016-05-06 07:49:50]

Created Revert of [turbofan] Take the immediate size in account when narrowing
ia32/x64 word comparison operators.

[commit-bot: I haz the power, 2016-05-06 09:07:53]

Description was changed from

==========
Revert of [turbofan] Take the immediate size in account when narrowing ia32/x64
word comparison operators. (patchset #2 id:20001 of
https://codereview.chromium.org/1948453002/ )

Reason for revert:
Breaks WASM; please also add tests when relanding.

Original issue's description:
> [turbofan] Take the immediate size in account when narrowing ia32/x64 word
comparison operators.
> 
> Before this patch, we would emit a cmp or test with a memory operand only if
both of the operands in the IR were loads. Now if either of them is a load and
the other one is an immediate, we can use a memory operand if the load
representation machine size is wide enough to represent the latter.
> 
> Committed: https://crrev.com/a0543313dbd46b0c2e72c91ee3488a7dc6db73e4
> Cr-Commit-Position: refs/heads/master@{#36009}

TBR=bmeurer@chromium.org,jfb@chromium.org,epertoso@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
==========

to

==========
Revert of [turbofan] Take the immediate size in account when narrowing ia32/x64
word comparison operators. (patchset #2 id:20001 of
https://codereview.chromium.org/1948453002/ )

Reason for revert:
Breaks WASM; please also add tests when relanding.

Original issue's description:
> [turbofan] Take the immediate size in account when narrowing ia32/x64 word
comparison operators.
>
> Before this patch, we would emit a cmp or test with a memory operand only if
both of the operands in the IR were loads. Now if either of them is a load and
the other one is an immediate, we can use a memory operand if the load
representation machine size is wide enough to represent the latter.
>
> Committed: https://crrev.com/a0543313dbd46b0c2e72c91ee3488a7dc6db73e4
> Cr-Commit-Position: refs/heads/master@{#36009}

TBR=bmeurer@chromium.org,jfb@chromium.org,epertoso@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Committed: https://crrev.com/3b7ff999f3a9b33945b77787ba85251e42939ac0
Cr-Commit-Position: refs/heads/master@{#36066}
==========