Add annotations for getters, setters and private fields

Author: HarrisL2

compiler/src/dotty/tools/dotc/transform/ErasurePreservation.scala

@@ -150,8 +150,8 @@ class ErasurePreservation extends MiniPhase {
           methodToInfos(Nil, other.widenExpr, tree.symbol.paramSymss.head, tree.symbol.isConstructor)
       case mt: MethodType =>
         methodToInfos(mt.paramInfos, mt.resType, Nil, false)
-      // case tr: TypeRef =>
-      //   methodToInfos(Nil, tr, Nil, false)
+      case tr: TypeRef =>
+        methodToInfos(Nil, tr, Nil, false)
       // case et: ExprType =>
       //   ???
       case other =>

compiler/src/dotty/tools/dotc/transform/Memoize.scala

@@ -145,7 +145,7 @@ class Memoize extends MiniPhase with IdentityDenotTransformer { thisPhase =>
           val field = newField.asTerm
           var rhs = tree.rhs.changeOwnerAfter(sym, field, thisPhase)
           if (isWildcardArg(rhs)) rhs = EmptyTree
-          val fieldDef = transformFollowing(ValDef(field, adaptToField(field, rhs)))
+          val fieldDef = transformFollowing(ValDef(field, adaptToField(field, rhs))).withAttachmentsFrom(tree)
           val rhsClass = tree.tpt.tpe.widenDealias.classSymbol
           val getterRhs =
             if isErasableBottomField(field, rhsClass) then erasedBottomTree(rhsClass)