Renaming

Author: nicolasstucki

compiler/src/dotty/tools/dotc/interactive/InteractiveDriver.scala

@@ -183,15 +183,15 @@ class InteractiveDriver(settings: List[String]) extends Driver {
    *  typed children if the source contains errors.
    */
   private def cleanup(tree: tpd.Tree)(implicit ctx: Context): Unit = {
-    val cleanedTree = mutable.Set.empty[tpd.Tree]
+    val seen = mutable.Set.empty[tpd.Tree]
     def cleanupTree(tree: tpd.Tree): Unit = {
-      cleanedTree += tree
+      seen += tree
       tree.foreachSubTree { t =>
         if (t.hasType) {
           if (t.symbol.exists) {
             if (!t.symbol.isCompleted) t.symbol.info = UnspecifiedErrorType
             t.symbol.annotations.foreach { annot =>
-              if (!cleanedTree(annot.tree))
+              if (!seen(annot.tree))
                 cleanupTree(annot.tree)
             }
           }