[interpreter] Move BytecodeGraphBuilder::Environment.

[interpreter] Move BytecodeGraphBuilder::Environment.

This moves the definition of the Environment class into the compilation
unit because it is only used there and not needed outside, the header
doesn't need to expose it.

R=rmcilroy@chromium.org

Committed: https://crrev.com/9bc3a2f150f8008aa7d7e16c59fa21718a1d6b55
Cr-Commit-Position: refs/heads/master@{#33605}

[rmcilroy, 2016-01-29 07:18:48]

lgtm

[Michael Starzinger, 2016-01-29 09:10:28]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-01-29 09:10:28]

The patchset sent to the CQ was uploaded after l-g-t-m from
rmcilroy@chromium.org
Link to the patchset: https://codereview.chromium.org/1644103002/#ps20001
(title: "Rebased.")

[commit-bot: I haz the power, 2016-01-29 09:10:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1644103002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1644103002/20001

[commit-bot: I haz the power, 2016-01-29 09:26:41]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-01-29 09:27:09]

Description was changed from

==========
[interpreter] Move BytecodeGraphBuilder::Environment.

This moves the definition of the Environment class into the compilation
unit because it is only used there and not needed outside, the header
doesn't need to expose it.

R=rmcilroy@chromium.org
==========

to

==========
[interpreter] Move BytecodeGraphBuilder::Environment.

This moves the definition of the Environment class into the compilation
unit because it is only used there and not needed outside, the header
doesn't need to expose it.

R=rmcilroy@chromium.org

Committed: https://crrev.com/9bc3a2f150f8008aa7d7e16c59fa21718a1d6b55
Cr-Commit-Position: refs/heads/master@{#33605}
==========

[commit-bot: I haz the power, 2016-01-29 09:27:15]

Patchset 2 (id:??) landed as
https://crrev.com/9bc3a2f150f8008aa7d7e16c59fa21718a1d6b55
Cr-Commit-Position: refs/heads/master@{#33605}