[Feature]: export globals/currentTestInfo() for custom matchers

[florianbepunkt]

Feature request

I'm writing a custom matcher that ports additional image comparison algorithms in order to solve my issue in #7548

Could you please export currentTestInfo() from https://github.com/microsoft/playwright/blob/master/src/test/globals.ts so wen can import it in our custom matchers like import { currentTestInfo } from "@playwright/test"

As far as I know this is the only method to receive snapshots paths and some more test info inside a custom matcher. I can require this file, but this means loosing TS support in IDE.

I think other people writing their own matchers would benefit from this as well.

[pavelfeldman]

test.info() will be there as of v1.18.

[nicojs]

And how will we get a reference to the test?