Remove use JavaScriptBackend and Compiler from SsaCodeGenerator

Remove use JavaScriptBackend and Compiler from SsaCodeGenerator

This is another move towards passing all information through data objects
computed by previous phases rather than pulling it directly from
Backend or Compiler.

This is needed to support a shift from model K to model J between
resolution and codegen.

R=efortuna@google.com

Committed: https://github.com/dart-lang/sdk/commit/ad81a25ed1a3f72fd3286e15326b278b39aaf16d

[Johnni Winther, 2017-03-28 13:25:25]

johnniwinther@google.com changed reviewers:
+ efortuna@google.com

[Emily Fortuna, 2017-03-28 18:27:45]

lgtm

[Johnni Winther, 2017-03-29 10:00:36]

Description was changed from

==========
Remove use JavaScriptBackend and Compiler from SsaCodeGenerator

This is another move towards passing all information through data objects
computed by previous phases rather than pulling it directly from
Backend or Compiler.

This is needed to support a shift from model K to model J between
resolution and codegen.
==========

to

==========
Remove use JavaScriptBackend and Compiler from SsaCodeGenerator

This is another move towards passing all information through data objects
computed by previous phases rather than pulling it directly from
Backend or Compiler.

This is needed to support a shift from model K to model J between
resolution and codegen.

R=efortuna@google.com

Committed:
https://github.com/dart-lang/sdk/commit/ad81a25ed1a3f72fd3286e15326b278b39aaf16d
==========

[Johnni Winther, 2017-03-29 10:00:37]

Committed patchset #1 (id:1) manually as
ad81a25ed1a3f72fd3286e15326b278b39aaf16d (presubmit successful).