Print whole TreeTransform name in Ycheck and Xprint

Author: DarkDimius

Diff for: src/dotty/tools/dotc/Run.scala

@@ -3,6 +3,7 @@ package dotc
 
 import core._
 import Contexts._, Periods._, Symbols._, Phases._, Decorators._
+import dotty.tools.dotc.transform.TreeTransforms.TreeTransformer
 import io.PlainFile
 import util.{SourceFile, NoSource, Stats, SimpleMap}
 import reporting.Reporter
@@ -60,7 +61,10 @@ class Run(comp: Compiler)(implicit ctx: Context) {
 
   private def printTree(ctx: Context) = {
     val unit = ctx.compilationUnit
-    println(s"result of $unit after ${ctx.phase.prev}:")
+    val prevPhase = ctx.phase.prev // can be a mini-phase
+    val squahsedPhase = ctx.squashed(prevPhase)
+
+    println(s"result of $unit after ${squahsedPhase}:")
     println(unit.tpdTree.show(ctx))
   }
 

Diff for: src/dotty/tools/dotc/core/Contexts.scala

@@ -472,6 +472,10 @@ object Contexts {
 
     /** The standard definitions */
     val definitions = new Definitions
+
+    def squashed(p: Phase): Phase = {
+      squashedPhases.find(_.period.containsPhaseId(p.id)).getOrElse(NoPhase)
+    }
   }
 
   /** The essential mutable state of a context base, collected into a common class */

Diff for: src/dotty/tools/dotc/transform/TreeChecker.scala

@@ -49,7 +49,9 @@ class TreeChecker {
   }
 
   def check(phasesToRun: Seq[Phase], ctx: Context) = {
-    println(s"checking ${ctx.compilationUnit} after phase ${ctx.phase.prev}")
+    val prevPhase = ctx.phase.prev // can be a mini-phase
+    val squahsedPhase = ctx.squashed(prevPhase)
+    println(s"checking ${ctx.compilationUnit} after phase ${squahsedPhase}")
     val checkingCtx = ctx.fresh
       .setTyperState(ctx.typerState.withReporter(new ThrowingReporter(ctx.typerState.reporter)))
     val checker = new Checker(previousPhases(phasesToRun.toList)(ctx))