Merge pull request #274 from smarter/fix/period-of-phases

Phases: set the period correctly

Author: DarkDimius

src/dotty/tools/dotc/core/Phases.scala

@@ -241,7 +241,7 @@ object Phases {
       if (start >= FirstPhaseId)
         assert(myPeriod == Periods.InvalidPeriod, s"phase $this has already been used once; cannot be reused")
       myBase = base
-      myPeriod = Period(start, end)
+      myPeriod = Period(NoRunId, start, end)
       myErasedTypes  = prev.getClass == classOf[Erasure]      || prev.erasedTypes
       myFlatClasses  = prev.getClass == classOf[Flatten]      || prev.flatClasses
       myRefChecked   = prev.getClass == classOf[RefChecks]    || prev.refChecked
@@ -250,7 +250,7 @@ object Phases {
 
     protected[Phases] def init(base: ContextBase, id: Int): Unit = init(base, id, id)
 
-    final def <=(that: Phase)(implicit ctx: Context) =
+    final def <=(that: Phase) =
       exists && id <= that.id
 
     final def prev: Phase =