Fix some errors around []= in core types.

Fix some errors around []= in core types.

- Get rid of JSMutableIndexable since it isn't useful.
- Make JSIndexable generic. (I think dart2js already did.)
- Add .length to NativeTypedArray since it no longer inherits it from
  JavaScriptIndexingBehavior.

R=jmesserly@google.com

Committed: https://github.com/dart-lang/dev_compiler/commit/2c313a43acea9315019943f2341dbf4601e4b9e8

[Bob Nystrom, 2016-09-30 00:09:14]

rnystrom@google.com changed reviewers:
+ jmesserly@google.com, vsm@google.com

[Bob Nystrom, 2016-09-30 00:09:15]

https://codereview.chromium.org/2378423003/diff/1/pkg/dev_compiler/tool/input...
File pkg/dev_compiler/tool/input_sdk/private/native_typed_data.dart (right):

https://codereview.chromium.org/2378423003/diff/1/pkg/dev_compiler/tool/input...
pkg/dev_compiler/tool/input_sdk/private/native_typed_data.dart:755: int get
length;
Is it OK to add this here, or will it re-trigger #138?

[Jennifer Messerly, 2016-09-30 00:11:07]

LGTM!

https://codereview.chromium.org/2378423003/diff/1/pkg/dev_compiler/tool/input...
File pkg/dev_compiler/tool/input_sdk/private/native_typed_data.dart (right):

https://codereview.chromium.org/2378423003/diff/1/pkg/dev_compiler/tool/input...
pkg/dev_compiler/tool/input_sdk/private/native_typed_data.dart:755: int get
length;
On 2016/09/30 00:09:15, Bob Nystrom wrote:
> Is it OK to add this here, or will it re-trigger #138?

it should be safe now. Definitely if you didn't see any presubmit failures it's
good :)

[Bob Nystrom, 2016-09-30 20:03:14]

Description was changed from

==========
Fix some errors around []= in core types.

- Get rid of JSMutableIndexable since it isn't useful.
- Make JSIndexable generic. (I think dart2js already did.)
- Add .length to NativeTypedArray since it no longer inherits it from
  JavaScriptIndexingBehavior.
==========

to

==========
Fix some errors around []= in core types.

- Get rid of JSMutableIndexable since it isn't useful.
- Make JSIndexable generic. (I think dart2js already did.)
- Add .length to NativeTypedArray since it no longer inherits it from
  JavaScriptIndexingBehavior.

R=jmesserly@google.com

Committed:
https://github.com/dart-lang/dev_compiler/commit/2c313a43acea9315019943f2341d...
==========

[Bob Nystrom, 2016-09-30 20:03:18]

Committed patchset #1 (id:1) manually as
2c313a43acea9315019943f2341dbf4601e4b9e8 (presubmit successful).