Scala 2.13.0 -> Scala 2.13.1 (#28140)

* Scala 2.13.0 -> Scala 2.13.1

* Update to genjavadoc 0.15

* Allow 'higherKinds' without explicit import

To follow the 2.13.1 convention

* Remaining higherKinds imports

* Mima excludes for missing value classes in generics

project/AkkaBuild.scala

@@ -121,7 +121,13 @@ object AkkaBuild {
 
   private def allWarnings: Boolean = System.getProperty("akka.allwarnings", "false").toBoolean
 
-  final val DefaultScalacOptions = Seq("-encoding", "UTF-8", "-feature", "-unchecked", "-Xlog-reflective-calls")
+  final val DefaultScalacOptions = Seq(
+    "-encoding", "UTF-8",
+    "-feature",
+    "-unchecked",
+    "-Xlog-reflective-calls",
+    // 'blessed' since 2.13.1
+    "-language:higherKinds")
 
   // -XDignore.symbol.file suppresses sun.misc.Unsafe warnings
   final val DefaultJavacOptions = Seq("-encoding", "UTF-8", "-Xlint:unchecked", "-XDignore.symbol.file")

project/Dependencies.scala

@@ -27,7 +27,7 @@ object Dependencies {
   val logbackVersion = "1.2.3"
 
   val scala212Version = "2.12.10"
-  val scala213Version = "2.13.0"
+  val scala213Version = "2.13.1"
 
   val reactiveStreamsVersion = "1.0.3"
 

project/Doc.scala

@@ -177,7 +177,7 @@ object BootstrapGenjavadoc extends AutoPlugin {
 
   override lazy val projectSettings = UnidocRoot.CliOptions.genjavadocEnabled
     .ifTrue(Seq(
-      unidocGenjavadocVersion := "0.14",
+      unidocGenjavadocVersion := "0.15",
       scalacOptions in Compile ++= Seq("-P:genjavadoc:fabricateParams=true", "-P:genjavadoc:suppressSynthetic=false")))
     .getOrElse(Nil)
 }