When generating CodeSourceMaps, reassign function ids once per function instead of once per inlinin…

When generating CodeSourceMaps, reassign function ids once per function instead of once per inlining site.

R=fschneider@google.com

Committed: https://github.com/dart-lang/sdk/commit/a52db232d68ef262c3b6c5c5dce18dd79e311a70

[rmacnak, 2017-03-22 22:38:41]

rmacnak@google.com changed reviewers:
+ fschneider@google.com

[rmacnak, 2017-03-22 22:38:41]

dart2js product x64

before
VMIsolate(CodeSize): 180142
Isolate(CodeSize): 4160775
ReadOnlyData(CodeSize): 5283920
Instructions(CodeSize): 20055840
Total(CodeSize): 29680677

after
VMIsolate(CodeSize): 169094
Isolate(CodeSize): 3907078 (-6.10%)
ReadOnlyData(CodeSize): 5210736 (-1.39%)
Instructions(CodeSize): 19630608
Total(CodeSize): 28917516 (-2.57%)

[Florian Schneider, 2017-03-24 16:21:06]

lgtm

[rmacnak, 2017-03-24 21:41:42]

Description was changed from

==========
When generating CodeSourceMaps, reassign function ids once per function instead
of once per inlining site.
==========

to

==========
When generating CodeSourceMaps, reassign function ids once per function instead
of once per inlining site.

R=fschneider@google.com

Committed:
https://github.com/dart-lang/sdk/commit/a52db232d68ef262c3b6c5c5dce18dd79e311a70
==========

[rmacnak, 2017-03-24 21:41:43]

Committed patchset #1 (id:1) manually as
a52db232d68ef262c3b6c5c5dce18dd79e311a70 (presubmit successful).