Respect prefix when checking if selector selects

Use miniphase api instead of traversing.

Share a megaphase with CheckShadowing.

Perform more expensive checks last. Avoid intermediate collections.

Tighten allowance for serialization methods.

Don't ignore params of public methods.

Show misplaced warn comment, unfulfilled expectations.

Warn for unused patvars.
Don't warn about canonical names (case class element names).
Warn unassigned mutable patvars

No transparent inline exclusion. Handle match types.
No warn inline proxy. Detect summon inline.

Unused import diagnostics have an origin.

Original of literal.

Typos in build. Handle aliased boolean settings.

Resolve imports post inlining.

Excuse only empty interfaces as unused bound.

Use result of TypeTest.

[Cherry-picked c65d45d][modified]

Author: tgodzik