Merge pull request #12561 from dotty-staging/remove-old-init

Remove old init checker

Author: liufengyun

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

@@ -23,9 +23,6 @@ class Checker extends MiniPhase {
 
   val phaseName = "initChecker"
 
-  // cache of class summary
-  private val cache = new Cache
-
   private val semantic = new Semantic
 
   override val runsAfter = Set(Pickler.name)
@@ -49,18 +46,6 @@ class Checker extends MiniPhase {
 
     // A concrete class may not be instantiated if the self type is not satisfied
     if (instantiable && cls.enclosingPackageClass != defn.StdLibPatchesPackage.moduleClass) {
-      implicit val state: Checking.State = Checking.State(
-        visited = Set.empty,
-        path = Vector.empty,
-        thisClass = cls,
-        fieldsInited = mutable.Set.empty,
-        parentsInited = mutable.Set.empty,
-        safePromoted = mutable.Set.empty,
-        env = Env(ctx.withOwner(cls), cache)
-      )
-
-      // Checking.checkClassBody(tree)
-
       import semantic._
       val tpl = tree.rhs.asInstanceOf[Template]
       val thisRef = ThisRef(cls)