Merge pull request #6068 from dotty-staging/fix-fuzzing

Fix #6054: Add missing dealias

Author: odersky

compiler/src/dotty/tools/dotc/ast/tpd.scala

@@ -435,7 +435,7 @@ object tpd extends Trees.Instance[Type] with TypedTreeInfo {
 
   /** new C(args), calling the primary constructor of C */
   def New(tp: Type, args: List[Tree])(implicit ctx: Context): Apply =
-    New(tp, tp.typeSymbol.primaryConstructor.asTerm, args)
+    New(tp, tp.dealias.typeSymbol.primaryConstructor.asTerm, args)
 
   /** new C(args), calling given constructor `constr` of C */
   def New(tp: Type, constr: TermSymbol, args: List[Tree])(implicit ctx: Context): Apply = {

tests/pos/i6054.scala

@@ -0,0 +1,6 @@
+trait i0 {
+  trait i1 extends Throwable { false }
+}
+//trait i0 {
+//  trait I1 extends Throwable { val I1 = () }
+//}