Remove tpt.original for Typed tree, as a workaround of #114

Author: Atry

compilerplugins-BangNotation/src/main/scala/com/thoughtworks/dsl/compilerplugins/BangNotation.scala

@@ -279,7 +279,13 @@ final class BangNotation(override val global: Global) extends Plugin {
                 if (tpt.tpe.hasAnnotation(resetAnnotationSymbol)) {
                   continue(exprValue)
                 } else {
-                  continue(Typed(exprValue, tpt))
+                  tpt match {
+                    case tpt: TypeTree =>
+                      // Remove tpt.original by tree copying, as a workaround of https://github.com/ThoughtWorksInc/Dsl.scala/issues/114
+                      continue(Typed(exprValue, treeCopy.TypeTree(tpt)))
+                    case _ =>
+                      continue(Typed(exprValue, tpt))
+                  }
                 }
               }
             }