[Feature] Add 'attribute' selector to the list of id, data-testid, ...

[thernstig]

Currently the attribute selector https://github.com/microsoft/playwright/blob/master/docs/selectors.md#id-data-testid-data-test-id-data-test-and-their-light-counterparts searches for id, data-testid, data-test-id, data-test and their :light counterparts.

Would it not make more sense to rename all these to just attribute, or at least add attribute to the list? API's that are almost self-explanatory by naming conventions are great APIs.

[pavelfeldman]

Could you elaborate on how this attribute selector would work and disambiguate with the css=hello constructs?

[thernstig]

I must have read the docs too quickly. I misunderstood thinking that id=foo would translate to css=[foo]. Basically my request would be a new feature which makes no sense then.