Upgrade MiMa, configure @experimental & curtail filters

Author: dwijnand

project/Build.scala

@@ -439,6 +439,8 @@ object Build {
       case CompatMode.BinaryCompatible          => "backward"
       case CompatMode.SourceAndBinaryCompatible => "both"
     }),
+
+    mimaExcludeAnnotations += "scala.annotation.experimental",
   )
 
   /** Projects -------------------------------------------------------------- */

project/MiMaFilters.scala

@@ -3,28 +3,18 @@ import com.typesafe.tools.mima.core._
 
 object MiMaFilters {
   val Library: Seq[ProblemFilter] = Seq(
+    ProblemFilters.exclude[Problem]("scala.runtime.*"), // KEEP: scala.runtime isn't public API
+
     // APIs that must be added in 3.2.0
     ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.runtime.QuoteUnpickler.unpickleExprV2"),
     ProblemFilters.exclude[DirectMissingMethodProblem]("scala.quoted.runtime.QuoteUnpickler.unpickleExprV2"),
     ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.runtime.QuoteUnpickler.unpickleTypeV2"),
     ProblemFilters.exclude[DirectMissingMethodProblem]("scala.quoted.runtime.QuoteUnpickler.unpickleTypeV2"),
 
-    // Experimental APIs that can be added in 3.2.0
-    ProblemFilters.exclude[DirectMissingMethodProblem]("scala.runtime.Tuples.append"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#SymbolMethods.asQuotes"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#ClassDefModule.apply"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#SymbolModule.newClass"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#SymbolMethods.typeRef"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#SymbolMethods.termRef"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#TypeTreeModule.ref"),
-    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#AppliedTypeModule.apply"),
-
     // Experimental `MainAnnotation` APIs. Can be added in 3.3.0 or later.
-    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation"),
-    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$"),
-    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$Command"),
-    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$CommandInfo"),
-    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$ParameterInfo"),
+    // MiMa bug: classes nested in an experimental object should be ignored
+    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$Info"),
+    ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$Parameter"),
     ProblemFilters.exclude[MissingClassProblem]("scala.annotation.MainAnnotation$ParameterAnnotation"),
   )
 }

project/plugins.sbt

@@ -14,4 +14,4 @@ addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.3.2")
 
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.9.0")
 
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.9.0")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.0")