[wasm] Refactor tests for i64.

[wasm] Refactor tests for i64.

Move all tests that use i64 values into test-run-wasm-64.cc. Introduce
macros that enable tests as they are implemented on 32 bit platforms.

R=ahaas@chromium.org
BUG=

Committed: https://crrev.com/4233050f771eafff41657137ea1d19350ebcbb98
Cr-Commit-Position: refs/heads/master@{#34742}

[titzer, 2016-03-14 11:08:18]

PTAL. This makes testing more robust and clearer what is enabled and what is
not.

[ahaas, 2016-03-14 13:14:11]

lgtm

[titzer, 2016-03-14 13:22:04]

The CQ bit was checked by titzer@chromium.org

[commit-bot: I haz the power, 2016-03-14 13:22:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1784343004/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1784343004/80001

[commit-bot: I haz the power, 2016-03-14 13:23:50]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2016-03-14 13:24:43]

Description was changed from

==========
[wasm] Refactor tests for i64.

Move all tests that use i64 values into test-run-wasm-64.cc. Introduce
macros that enable tests as they are implemented on 32 bit platforms.

R=ahaas@chromium.org
BUG=
==========

to

==========
[wasm] Refactor tests for i64.

Move all tests that use i64 values into test-run-wasm-64.cc. Introduce
macros that enable tests as they are implemented on 32 bit platforms.

R=ahaas@chromium.org
BUG=

Committed: https://crrev.com/4233050f771eafff41657137ea1d19350ebcbb98
Cr-Commit-Position: refs/heads/master@{#34742}
==========

[commit-bot: I haz the power, 2016-03-14 13:24:44]

Patchset 5 (id:??) landed as
https://crrev.com/4233050f771eafff41657137ea1d19350ebcbb98
Cr-Commit-Position: refs/heads/master@{#34742}