fix #2163: don't narrow liftedOwner if symbol is InSuperCall

Author: liufengyun

compiler/src/dotty/tools/dotc/transform/LambdaLift.scala

@@ -146,6 +146,7 @@ class LambdaLift extends MiniPhase with IdentityDenotTransformer { thisTransform
     def narrowLiftedOwner(sym: Symbol, owner: Symbol)(implicit ctx: Context) =
       if (sym.maybeOwner.isTerm &&
         owner.isProperlyContainedIn(liftedOwner(sym)) &&
+        !sym.is(InSuperCall) &&
         owner != sym) {
         ctx.log(i"narrow lifted $sym to $owner")
         changedLiftedOwner = true

tests/run/i2163.check

@@ -0,0 +1 @@
+7

tests/run/i2163.scala

@@ -0,0 +1,9 @@
+class Base(f: Int => Int) {
+  f(3)
+}
+
+class Child(x: Int) extends Base(y => x + y)
+
+object Test {
+  def main(args: Array[String]): Unit = new Child(4)
+}