[BUG] ScalaJS compilation error with Scala 3.8.1

[rreckel]

Tapir version: 1.13.6
Scala version: 3.8.1

When compiling a multipartBody, an Scala compiler error is thrown:
Cannot resolve delambdafy target method decode at ...

The error is thrown during the genSJSIR phase.
Compiling the JVM version of the endpoints works.

I suppose the error is related to:
Macro compilation fails on ScalaJS, ok on JVM

[ivan-klass]

Got the exact same issue when trying 3.8.1, also using tapir.
I was thinking it's my code triggering this

[j-mie6]

Thirded

[adamw]

Looking at the linked (closed) Scala bug, it says that there's a bug in the macro? So maybe there's a bug in our macros?

Thinking more about this, maybe we should start testing our libraries against Scala 3.8.x, anticipating the new 3.9 LTS. Keeping 3.3 as the default for now, of course.

[romainreuillon]

Same error with scala compiler 3.8.3

[rreckel]

Looking at the following issue:
scala/scala3#25198
it seems that methodSymbolName used in Closure should be named with an "$anonfun$" prefix.

Looking at the lines:
https://github.com/softwaremill/tapir/blob/master/core/src/main/scala-3/sttp/tapir/macros/MultipartCodecMacros.scala#L88
and
https://github.com/softwaremill/tapir/blob/master/core/src/main/scala-3/sttp/tapir/macros/MultipartCodecMacros.scala#L116
it seems that the names miss the prefix.

I suppose that just renaming these method symbols should fix this issue.