The default ApiVisibility=PublicOnly setting filters search results
through CheckVisibility, which rejects private entities. Compiler-
generated names — async/iterator state machines (<Method>d__N),
display classes (<>c__DisplayClass), anonymous-method closures (<>c)
— are all private, so they were unfindable even when the user
typed the exact full name.
Assisted-by: Claude:claude-opus-4-7:Claude Code
Siegfried Pammer