Revert of Removes uint8_t from MachineRepresentation and MachineSemantic enums.

Revert of Removes uint8_t from MachineRepresentation and MachineSemantic enums. (patchset #1 id:1 of https://codereview.chromium.org/2669113003/ )

Reason for revert:
Breaks bunch Wasm tests on Win64 (e.g., cctest/test-run-wasm/RunWasmCompiled_CallIndirect_EmptyTable).

Original issue's description:
> Removes uint8_t from MachineRepresentation and MachineSemantic enums.
> 
> This works around a compiler bug that leads to incorrect masking of
> the semantic_ field in TruncatingUseInfoFromRepresentation.
> 
> Patch from bulach@google.com
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2669113003
> Cr-Commit-Position: refs/heads/master@{#42925}
> Committed: https://chromium.googlesource.com/v8/v8/+/8c7fc377fd5c03e30cbf767cd22aba59178e0143

TBR=bulach@google.com,bmeurer@chromium.org,ulan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2669213006
Cr-Commit-Position: refs/heads/master@{#42927}
Committed: https://chromium.googlesource.com/v8/v8/+/876b49a930f3d2128d2afcfd0f2923e961c59bb4

[Jarin, 2017-02-03 13:30:36]

The CQ bit was checked by jarin@chromium.org

[Jarin, 2017-02-03 13:30:37]

Created Revert of Removes uint8_t from MachineRepresentation and MachineSemantic
enums.

[commit-bot: I haz the power, 2017-02-03 13:30:42]

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, 2017-02-03 13:30:51]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486128636845180, "parent_rev":
"5205b9db0659efc03f612e6ffc525b922629d67c", "commit_rev":
"876b49a930f3d2128d2afcfd0f2923e961c59bb4"}

[commit-bot: I haz the power, 2017-02-03 13:30:55]

Description was changed from

==========
Revert of Removes uint8_t from MachineRepresentation and MachineSemantic enums.
(patchset #1 id:1 of https://codereview.chromium.org/2669113003/ )

Reason for revert:
Breaks bunch Wasm tests on Win64 (e.g.,
cctest/test-run-wasm/RunWasmCompiled_CallIndirect_EmptyTable).

Original issue's description:
> Removes uint8_t from MachineRepresentation and MachineSemantic enums.
> 
> This works around a compiler bug that leads to incorrect masking of
> the semantic_ field in TruncatingUseInfoFromRepresentation.
> 
> Patch from bulach@google.com
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2669113003
> Cr-Commit-Position: refs/heads/master@{#42925}
> Committed:
https://chromium.googlesource.com/v8/v8/+/8c7fc377fd5c03e30cbf767cd22aba59178...

TBR=bulach@google.com,bmeurer@chromium.org,ulan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
==========

to

==========
Revert of Removes uint8_t from MachineRepresentation and MachineSemantic enums.
(patchset #1 id:1 of https://codereview.chromium.org/2669113003/ )

Reason for revert:
Breaks bunch Wasm tests on Win64 (e.g.,
cctest/test-run-wasm/RunWasmCompiled_CallIndirect_EmptyTable).

Original issue's description:
> Removes uint8_t from MachineRepresentation and MachineSemantic enums.
> 
> This works around a compiler bug that leads to incorrect masking of
> the semantic_ field in TruncatingUseInfoFromRepresentation.
> 
> Patch from bulach@google.com
> 
> BUG=
> 
> Review-Url: https://codereview.chromium.org/2669113003
> Cr-Commit-Position: refs/heads/master@{#42925}
> Committed:
https://chromium.googlesource.com/v8/v8/+/8c7fc377fd5c03e30cbf767cd22aba59178...

TBR=bulach@google.com,bmeurer@chromium.org,ulan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2669213006
Cr-Commit-Position: refs/heads/master@{#42927}
Committed:
https://chromium.googlesource.com/v8/v8/+/876b49a930f3d2128d2afcfd0f2923e961c...
==========

[commit-bot: I haz the power, 2017-02-03 13:30:56]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/876b49a930f3d2128d2afcfd0f2923e961c...