This change removes the implementation of `dart:js` for dart2wasm. The
code is no longer in use and the compiler already provides a static
error if you import `dart:js` internally.
By removing the implementation from the libraries.json spec, we also
show this as unaccessible on conditional imports. This will allow
developers to distinguish JS and Wasm backends
This adapts the original implementation in
https://dart-review.googlesource.com/c/sdk/+/368642 with a few small
changes, but keeps around the existing allowances on `package:js`. Those
can be addressed separately to reduce the disruption from this change.
Closes#55266.
Change-Id: I0d01a424f2fdb4f48879bd1a41c847a92439e74a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/380583
Reviewed-by: Ömer Ağacan <omersa@google.com>
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Sigmund Cherem
e8a049fd8e