Sourcelinks tests does not consider src-bootstrapped

[odersky]

#11721 fails with the stdlib-sourcelinks-test. it complains that library/src/scala/CanThrow.scala does not exist. That's because it is in src-bootstrapped, not src.

Expectation

stdlib-sourcelinks-test should also consider sources in src-bootstrapped.

This is a blocker for 3.1.

[pikinier20]

I'm going to create PR with workaround for #11721 but in general the problem remains and should be fixed

EDIT: Actually, I realized that it's not a problem with source links test but with source links generation because it always assumes that file is under src directory

[pikinier20]

I think we can drop it from 3.1.0 as it's not a blocker anymore

[odersky]

It's a blocker for any work that creates a file in bootstrapped. So we should still fix it ASAP. In my experience sourceLinks fails more often than any other test. Given how relatively little the test actually checks, that must count as one of the biggest productivity blockers we have today.