Add stub versions of KernelInferrerEngine and friends

Add stub versions of KernelInferrerEngine and friends

+ use BackendStrategy to select inference engine.

R=sigmund@google.com

Committed: https://github.com/dart-lang/sdk/commit/4d47a0c2de54202cab03afb3001bfe10f3833634

[Johnni Winther, 2017-08-09 13:29:13]

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

[Siggi Cherem (dart-lang), 2017-08-09 16:22:43]

lgtm

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/backen...
File pkg/compiler/lib/src/backend_strategy.dart (right):

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/backen...
pkg/compiler/lib/src/backend_strategy.dart:56: GlobalTypeInferenceResults
createTypesInferrerResults(
does this need to be in this strategy? Can't it be a result from TypesInferrer
directly?

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/types/...
File pkg/compiler/lib/src/types/types.dart (right):

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/types/...
pkg/compiler/lib/src/types/types.dart:57: /// the type of the `a.f` getter in
`a.f += b`.
seems for some reason the comment here and the comment in typeOfGetter are
swapped, do you mind switching them here?

[Johnni Winther, 2017-08-10 09:00:50]

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/backen...
File pkg/compiler/lib/src/backend_strategy.dart (right):

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/backen...
pkg/compiler/lib/src/backend_strategy.dart:56: GlobalTypeInferenceResults
createTypesInferrerResults(
On 2017/08/09 16:22:42, Siggi Cherem (dart-lang) wrote:
> does this need to be in this strategy? Can't it be a result from TypesInferrer
> directly?

Good idea. Done.

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/types/...
File pkg/compiler/lib/src/types/types.dart (right):

https://codereview.chromium.org/2999723002/diff/1/pkg/compiler/lib/src/types/...
pkg/compiler/lib/src/types/types.dart:57: /// the type of the `a.f` getter in
`a.f += b`.
On 2017/08/09 16:22:42, Siggi Cherem (dart-lang) wrote:
> seems for some reason the comment here and the comment in typeOfGetter are
> swapped, do you mind switching them here?

Done.

[Johnni Winther, 2017-08-10 10:02:34]

Description was changed from

==========
Add stub versions of KernelInferrerEngine and friends

+ use BackendStrategy to select inference engine.
==========

to

==========
Add stub versions of KernelInferrerEngine and friends

+ use BackendStrategy to select inference engine.

R=sigmund@google.com

Committed:
https://github.com/dart-lang/sdk/commit/4d47a0c2de54202cab03afb3001bfe10f3833634
==========

[Johnni Winther, 2017-08-10 10:02:36]

Committed patchset #2 (id:20001) manually as
4d47a0c2de54202cab03afb3001bfe10f3833634 (presubmit successful).