[turbofan] Use builtin inlining mechanism for Math.abs and Math.sqrt.

[turbofan] Use builtin inlining mechanism for Math.abs and Math.sqrt.

Reduces the amount of custom support code for Math functions in TurboFan
and allows for more general inlining (i.e. independent of parameter
types).

BUG=v8:3952
LOG=n
R=yangguo@chromium.org

Committed: https://crrev.com/83f157bc18cd9e23f88e045351665c70f283c6ad
Cr-Commit-Position: refs/heads/master@{#27172}

[Yang, 2015-03-13 07:04:19]

On 2015/03/13 05:21:57, Benedikt Meurer wrote:

lgtm.

[Benedikt Meurer, 2015-03-13 07:04:32]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2015-03-13 07:04:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1004083002/1

[commit-bot: I haz the power, 2015-03-13 07:06:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-13 07:06:25]

Patchset 1 (id:??) landed as
https://crrev.com/83f157bc18cd9e23f88e045351665c70f283c6ad
Cr-Commit-Position: refs/heads/master@{#27172}