`-Wconf:origin=` unimplemented

[som-snytt]

Compiler version

3.4.x

Minimized code

scala -Xlint -Wconf:origin='scala.collection.JavaConverters.*':s
Welcome to Scala 2.13.12 (OpenJDK 64-Bit Server VM, Java 21.0.2).
Type in expressions for evaluation. Or try :help.

scala> class C { import scala.collection.JavaConverters._ }
class C

scala> class C { import collection.JavaConverters._; def f(xs: java.util.List[String]) = xs.asScala }
class C

Output

Warning suppression of unused import and deprecated usage.

Expectation

Parity in Scala 3.

The origin filter is especially handy because import clauses do not receive annotations such as nowarn.

https://discord.com/channels/632277896739946517/839243149745455174/1202305289479528478

[SethTisue]

Duplicate of #17538?

[som-snytt]

@SethTisue thanks I only saw src fsr.