Stabilize quotes Flags.AbsOverride (#18482)

Author: smarter

library/src/scala/quoted/Quotes.scala

@@ -4398,9 +4398,9 @@ trait Quotes { self: runtime.QuoteUnpickler & runtime.QuoteMatching =>
       /** Is this an abstract override method?
        *
        *  This corresponds to a definition declared as "abstract override def" in the source.
-       * See https://stackoverflow.com/questions/23645172/why-is-abstract-override-required-not-override-alone-in-subtrait for examples.
+       *  See https://stackoverflow.com/questions/23645172/why-is-abstract-override-required-not-override-alone-in-subtrait for examples.
        */
-      @experimental def AbsOverride: Flags
+      def AbsOverride: Flags
 
       /** Is this generated by Scala compiler.
        *  Corresponds to ACC_SYNTHETIC in the JVM.

project/MiMaFilters.scala

@@ -4,6 +4,7 @@ import com.typesafe.tools.mima.core._
 object MiMaFilters {
   val Library: Seq[ProblemFilter] = Seq(
     // New API in 3.4.X
+    ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#FlagsModule.AbsOverride"),
     ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule.ValOrDefDefTypeTest"),
     ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule.ValOrDefDefMethods"),
     ProblemFilters.exclude[ReversedMissingMethodProblem]("scala.quoted.Quotes#reflectModule#defnModule.FunctionClass"),

tests/run-tasty-inspector/stdlibExperimentalDefinitions.scala

@@ -68,7 +68,6 @@ val experimentalDefinitionInLibrary = Set(
   "scala.annotation.init$.region",
 
    //// New APIs: Quotes
-  "scala.quoted.Quotes.reflectModule.FlagsModule.AbsOverride",
   // Can be stabilized in 3.4.0 (unsure) or later
   "scala.quoted.Quotes.reflectModule.CompilationInfoModule.XmacroSettings",
   "scala.quoted.Quotes.reflectModule.FlagsModule.JavaAnnotation",