Set the positions of inlined trees wehn read form Tasty

This required a major change in the way positions are handled, as the
previous scheme did not allow to read the positions of arbitrary subtrees
selectively.

Fortunately, it's altogether a major simplification.

Also, this fixed a bug in the previous scheme, where positions were
generated before compactification, resulting in addresses being wrong.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/dotty/tools/dotc/core/tasty/TastyPrinter.scala b/src/dotty/tools/dotc/core/tasty/TastyPrinter.scala
index 915ae3f21..7fcd7c29e 100644
--- a/src/dotty/tools/dotc/core/tasty/TastyPrinter.scala
+++ b/src/dotty/tools/dotc/core/tasty/TastyPrinter.scala
@@ -113,8 +113,8 @@ class TastyPrinter(bytes: Array[Byte])(implicit ctx: Context) {
   class PositionSectionUnpickler extends SectionUnpickler[Unit]("Positions") {
     def unpickle(reader: TastyReader, tastyName: TastyName.Table): Unit = {
       print(s"${reader.endAddr.index - reader.currentAddr.index}")
-      val (totalRange, positions) = new PositionUnpickler(reader).unpickle()
-      println(s" position bytes in $totalRange:")
+      val positions = new PositionUnpickler(reader).positions
+      println(s" position bytes:")
       val sorted = positions.toSeq.sortBy(_._1.index)
       for ((addr, pos) <- sorted) println(s"${addr.index}: ${offsetToInt(pos.start)} .. ${pos.end}")
     }