Clean up FunctionLiteral AST node cruft

Clean up FunctionLiteral AST node cruft

Removed unused name_ field, made bitfield 16-bits long, and moved it to
the start of the struct, resulting in a reduction of 8 bytes on both
32 and 64-bit platforms.

Most other changes (which prompted this work) are cosmetic:r
  - Combined redundant enums
  - Named enum values kConsistently
  - Consistently use booleans in bitfield, using enum values
    only for passing information into NewFunctionLiteral
  - Removed unneeded arguments from NewFunctionLiteral, reducing
    clutter at callsites
  - Added const correctness consistently

Committed: https://crrev.com/316dc1733191538bb0df4da7dfbd7f2e6bbf2d0f
Cr-Commit-Position: refs/heads/master@{#33194}

[adamk, 2016-01-07 02:53:24]

adamk@chromium.org changed reviewers:
+ littledan@chromium.org

[adamk, 2016-01-08 19:32:49]

adamk@chromium.org changed reviewers:
+ rossberg@chromium.org

[adamk, 2016-01-08 19:32:49]

Ping? Nothing too exciting here (and no hurry), just want to make sure it's not
dropped.

[Dan Ehrenberg, 2016-01-08 20:08:47]

lgtm

[adamk, 2016-01-08 20:11:56]

The CQ bit was checked by adamk@chromium.org

[commit-bot: I haz the power, 2016-01-08 20:12:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1566053002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1566053002/1

[commit-bot: I haz the power, 2016-01-08 20:38:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-08 20:38:44]

Description was changed from

==========
Clean up FunctionLiteral AST node cruft

Removed unused name_ field, made bitfield 16-bits long, and moved it to
the start of the struct, resulting in a reduction of 8 bytes on both
32 and 64-bit platforms.

Most other changes (which prompted this work) are cosmetic:r
  - Combined redundant enums
  - Named enum values kConsistently
  - Consistently use booleans in bitfield, using enum values
    only for passing information into NewFunctionLiteral
  - Removed unneeded arguments from NewFunctionLiteral, reducing
    clutter at callsites
  - Added const correctness consistently
==========

to

==========
Clean up FunctionLiteral AST node cruft

Removed unused name_ field, made bitfield 16-bits long, and moved it to
the start of the struct, resulting in a reduction of 8 bytes on both
32 and 64-bit platforms.

Most other changes (which prompted this work) are cosmetic:r
  - Combined redundant enums
  - Named enum values kConsistently
  - Consistently use booleans in bitfield, using enum values
    only for passing information into NewFunctionLiteral
  - Removed unneeded arguments from NewFunctionLiteral, reducing
    clutter at callsites
  - Added const correctness consistently

Committed: https://crrev.com/316dc1733191538bb0df4da7dfbd7f2e6bbf2d0f
Cr-Commit-Position: refs/heads/master@{#33194}
==========

[commit-bot: I haz the power, 2016-01-08 20:38:44]

Patchset 1 (id:??) landed as
https://crrev.com/316dc1733191538bb0df4da7dfbd7f2e6bbf2d0f
Cr-Commit-Position: refs/heads/master@{#33194}