Update scala3-compiler_3, ... to 3.5.1-RC2

and exclude some synthetic sources that recently became
part of the source jar (scala/scala3#20904)

project/DottySupport.scala

@@ -12,7 +12,7 @@ import sbt.librarymanagement.{
   * Settings to support validation of TastyUnpickler against the release of dotty with the matching TASTy version
   */
 object TastySupport {
-  val supportedTASTyRelease = "3.5.0-RC4" // TASTY: 28.5-1
+  val supportedTASTyRelease = "3.5.1-RC2" // TASTY: 28.5-1
   val scala3Compiler = "org.scala-lang" % "scala3-compiler_3" % supportedTASTyRelease
   val scala3Library = "org.scala-lang" % "scala3-library_3" % supportedTASTyRelease
 
@@ -69,7 +69,9 @@ object DottySupport {
       object DottyLibrarySourceFilter extends FileFilter {
         def accept(file: File): Boolean = {
           val name = file.getName
-          file.isFile && (name.endsWith(".scala") || name.endsWith(".java"))
+          file.isFile &&
+            (name.endsWith(".scala") || name.endsWith(".java")) &&
+            !Set("AnyKind.scala", "Matchable.scala").contains(name)
         }
       }