Allow MiniPhase to be DenotTransformer

All MiniPhases now as are full-fledged phases,
and are given their own periods and can register DenotTransformers.
MiniPhases belonging to same group(list) will be squashed to single phase.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/dotty/tools/dotc/core/Periods.scala b/src/dotty/tools/dotc/core/Periods.scala
index 1c9fbf0c6..61f395c7d 100644
--- a/src/dotty/tools/dotc/core/Periods.scala
+++ b/src/dotty/tools/dotc/core/Periods.scala
@@ -32,8 +32,8 @@ abstract class Periods extends DotClass { self: Context =>
    */
   def stablePeriod = {
     var first = phaseId
-    val nxTrans = ctx.base.nextTransformerId(first)
-    while (first - 1 > NoPhaseId && (ctx.base.nextTransformerId(first - 1) == nxTrans)) {
+    val nxTrans = ctx.base.nextDenotTransformerId(first)
+    while (first - 1 > NoPhaseId && (ctx.base.nextDenotTransformerId(first - 1) == nxTrans)) {
       first -= 1
     }
     Period(runId, first, nxTrans)
@@ -49,6 +49,8 @@ object Periods {
    *     runid                21 bits
    *     last phase id:        5 bits
    *     #phases before last:  5 bits
+   *
+   *     // Dmitry: sign == 0 isn't actually always true, in some cases phaseId == -1 is used for shifts, that easily creates code < 0
    */
   class Period(val code: Int) extends AnyVal {