Mitigate crashes during `scala-library-bootstrapped/doc`#24510

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WojciechMazur wants to merge 3 commits intoscala:mainfrom

WojciechMazur:fix/scala-library-doc

Commits on Nov 23, 2025

Setup `doc / scalaInstance` instance to be used when building docs.
WojciechMazur
committed
Enable scala-library-bootstrapped docs generation again
WojciechMazur
committed
Adjust assertions and errors to be more relaxed under --from-tasty compilation (Mode.ReadPositions)
WojciechMazur
committed