Mention formatting macros when encountering `ArgumentV1` method in const Also open to just closing this if it's overkill. There are a lot of other distracting error messages around, so maybe it's not worth fixing just this one. Fixes #93665
debug_assert
assert
CachingSourceMapView
Encodable
Encoder
Span::eq_ctxt
.ctxt() == .ctxt()
EventArgRecorder
SpannedEventArgRecorder
SourceFile::lines