Fix debugging code

Author: liufengyun

compiler/src/dotty/tools/dotc/transform/init/Effects.scala

@@ -61,7 +61,7 @@ object Effects {
   extension (eff: Effect) def toEffs: Effects = Effects.empty + eff
 
   def asSeenFrom(eff: Effect, thisValue: Potential)(implicit env: Env): Effect =
-    trace(eff.show + " asSeenFrom " + thisValue.show + ", current = " + currentClass.show, init, eff => show(Effects.empty + eff.asInstanceOf[Effect])) { eff match {
+    trace(eff.show + " asSeenFrom " + thisValue.show + ", current = " + currentClass.show, init, _.asInstanceOf[Effect].show) { eff match {
       case Promote(pot) =>
         val pot1 = Potentials.asSeenFrom(pot, thisValue)
         Promote(pot1)(eff.source)

compiler/src/dotty/tools/dotc/transform/init/Potentials.scala

@@ -174,7 +174,7 @@ object Potentials {
 
   extension (ps: Potentials) def promote(source: Tree): Effects = ps.map(Promote(_)(source))
 
-  def asSeenFrom(pot: Potential, thisValue: Potential)(implicit env: Env): Potential = trace(pot.show + " asSeenFrom " + thisValue.show, init, pot => pot.asInstanceOf[Potential].show) {
+  def asSeenFrom(pot: Potential, thisValue: Potential)(implicit env: Env): Potential = trace(pot.show + " asSeenFrom " + thisValue.show, init, _.asInstanceOf[Potential].show) {
     pot match {
       case MethodReturn(pot1, sym) =>
         val pot = asSeenFrom(pot1, thisValue)