Error when compiling Scala 3 code using the new and experimental macro annotations

[alexarchambault]

See this repo for a full reproduction.

When trying to compile this code (where @caseapp.entrypoint is a macro annotation), we get an error like:

E] Unexpected error when compiling project_9a380f230a-70bf441a95: 'Failed to find name hashes for Hello$.$method$hello$macro$1'
[E] Failed to compile 'project_9a380f230a-70bf441a95'

The README of the repro repository above has a server stacktrace corresponding to the exception of the "Failed to find name hashes for…" message (at the very end of the README).