Drop outdated comment

Author: odersky

compiler/src/dotty/tools/dotc/core/Definitions.scala

@@ -246,17 +246,6 @@ class Definitions {
    *  - Have other methods exist only in Object.
    * To achieve this, we synthesize all Any and Object methods; Object methods no longer get
    * loaded from a classfile.
-   *
-   * There's a remaining question about `getClass`. In Scala2.x `getClass` was handled by compiler magic.
-   * This is deemed too cumersome for Dotty and therefore right now `getClass` gets no special treatment;
-   * it's just a method on `Any` which returns the raw type `java.lang.Class`. An alternative
-   * way to get better `getClass` typing would be to treat `getClass` as a method of a generic
-   * decorator which gets remapped in a later phase to Object#getClass. Then we could give it
-   * the right type without changing the typechecker:
-   *
-   *     implicit class AnyGetClass[T](val x: T) extends AnyVal {
-   *       def getClass: java.lang.Class[T] = ???
-   *     }
    */
   @tu lazy val AnyClass: ClassSymbol = completeClass(enterCompleteClassSymbol(ScalaPackageClass, tpnme.Any, Abstract, Nil), ensureCtor = false)
   def AnyType: TypeRef = AnyClass.typeRef
@@ -275,7 +264,7 @@ class Definitions {
     @tu lazy val Any_typeCast: TermSymbol     = enterT1ParameterlessMethod(AnyClass, nme.asInstanceOfPM, _.paramRefs(0), Final | Synthetic | Artifact | StableRealizable)
       // generated by pattern matcher, eliminated by erasure
 
-    // def getClass[A >: this.type](): Class[? <: A]
+    /** def getClass[A >: this.type](): Class[? <: A] */
     @tu lazy val Any_getClass: TermSymbol =
         enterPolyMethod(
           AnyClass, nme.getClass_, 1,