Add @JSName annotation for native fields and methods - second try.

Add @JSName annotation for native fields and methods - second try.

Committed: https://code.google.com/p/dart/source/detail?r=15569

[sra1, 2012-11-30 07:12:17]

Hi Erik,

This seems to have stuck.

It might be nice to structure your code in a similar way:

1. get the minified names for getter and setter.
2. If the names can be expressed as a field, use the field, else use explicit
getters/setters.

That way the code is more robust - if anything goes wrong, you get explicit
getters/setters which still work.

https://codereview.chromium.org/11419250/diff/5002/sdk/lib/_internal/compiler...
File sdk/lib/_internal/compiler/implementation/js_backend/emitter.dart (right):

https://codereview.chromium.org/11419250/diff/5002/sdk/lib/_internal/compiler...
sdk/lib/_internal/compiler/implementation/js_backend/emitter.dart:837: if
(!getterAndSetterCanBeImplementedByFieldSpec(
Erik: This is a bit unsatisfactory that this function is called from both
emitClassFields and emitClassGettersSetter.

I would probably be best to merge these into one function that creates field
data or methods on a per member basis.