scala3 tracing failing to detect name of method

[caoilte]

Mostly everything is fine in scala3 but I'm struggling to make trace for me. instead of printing the function name where the error occurred it always prints something like ParserGrammar$$$Lambda$122/0x0000000800d4b920@cad498c):1:3 where ParserGrammar is an object and the parser is a standard def within the object.

It does seem to work on built in parsers okay (eg end-of-input)

Possibly the problem is related to CharPred and the function (Char => Boolean) I am passing it always being traced as an unhelpful anonymous lambda. It may not even be a scala 3 thing.

[lihaoyi]

@caoilte please provide a code sample that reproduces the issue