Don't print inlined function ID in --trace-hydrogen

Don't print inlined function ID in --trace-hydrogen

FunctionLiteral has two purposes: it is a unit of compilation, and it is
also an expression.  Its id() is only for the latter purpose, used by
the continuation of the closure, not by the closure itself.

When we inline, we treat the FunctionLiteral as a unit of compilation,
not as an expression, and as such the FunctionLiteral doesn't have any
meaningful ID.  The right thing to do is not to access the ID when
printing the hydrogen expression.

R=svenpanne@chromium.org, vegorov@google.com
BUG=v8:3680
LOG=N

Committed: https://code.google.com/p/v8/source/detail?r=25267

[Sven Panne, 2014-11-11 14:31:17]

svenpanne@chromium.org changed reviewers:
+ vegorov@chromium.org

[Sven Panne, 2014-11-11 14:31:17]

LGTM from my side, but let's wait for Slava to see if it doesn't break his
IRHydra.

[Vyacheslav Egorov (Google), 2014-11-11 14:32:30]

vegorov@google.com changed reviewers:
+ vegorov@google.com

[Vyacheslav Egorov (Google), 2014-11-11 14:32:30]

LGTM,

I don't think this is used in IRHydra

[thanks for CCing me!]

[wingo, 2014-11-11 15:53:54]

Committed patchset #1 (id:1) manually as 25267 (presubmit successful).