fixup! [core] Deprecate ExtModule utility traits

Author: seldridge

release.mill

@@ -55,7 +55,7 @@ trait Unipublish extends ScalaModule with ChiselPublishModule with Mima {
     ProblemFilter.exclude[MissingTypesProblem]("chisel3.internal.firrtl.ir*"),
     ProblemFilter.exclude[MissingClassProblem]("chisel3.internal.firrtl.ir*"),
     // This was package private and is fine to break.
-    ProblemFilter.exclude[MissingClassProblem]("chisel3.util.BlackBoxHelpers$"),
+    ProblemFilter.exclude[MissingClassProblem]("chisel3.util.BlackBoxHelpers*"),
     // firrtl is deprecated and is fine to break.
     ProblemFilter.exclude[DirectMissingMethodProblem]("firrtl.ir*"),
     ProblemFilter.exclude[IncompatibleResultTypeProblem]("firrtl.ir*"),