refactor(all): migrate to package:web

[ahmednfwela]

No description provided.

[GZGavinZhao]

Current blockers, working on them one by one:

• JSTestability needs to be migrated to staticInterop and extension types. (Mostly done, tests need to be updated)
• Don't use tear-offs for extension methods. Not difficult to do, just annoying because we use them all over the place in tests for convenience.
• Functions that are wrapped with toJS need to have more explicit types that follow the interop rules. This is actually a good thing because we'll then have stricter type guarantees.
• It seems like ElementRef needs to be eliminated. (this may warrant its own issue?)

[ykmnkmi]

Should be event.isA<KeyboardEvent>().

[genesistms]

isA() requires to bump SDK to 3.4.0

[ykmnkmi]

Any news?

[dukefirehawk]

Is this migration work still going on?

[GZGavinZhao]

Unfortunately not for me as I don't have the time for this.

[ykmnkmi]

@GZGavinZhao I can push this later.

[GZGavinZhao]

@ykmnkmi Thanks!

[ykmnkmi]

@GZGavinZhao as new PR?

[GZGavinZhao]

@ykmnkmi That sounds good!

[ykmnkmi]

@GZGavinZhao working on here.

[insinfo]

@GZGavinZhao @ykmnkmi Could you publish the ngdart 8.0.0-dev.4 version as ngdart 8.0.0 so that you can later publish version 9 migrated to package:web? I have many of my applications that directly depend on version https://pub.dev/packages/ngdart/versions/8.0.0-dev.4, which in turn depends on dart:html. In fact, I haven't migrated anything to the package:web package yet, although I should migrate something sometime next year.

[ykmnkmi]

@insinfo I do not publish it. I found some problems with DOM properties. I will look into it later. +1 for web migration in next version.