t3649.scala:1: error: C is already defined as (compiler-generated) case class companion object C
object T { class C(s: String = ""); val C = 0 }
                                        ^
t3649.scala:2: error: C is already defined as (compiler-generated) case class companion object C
object U { class C(val s: String = ""); val C = new C() {} }
                                            ^
t3649.scala:2: error: not enough arguments for constructor C: (s: String)U.C
object U { class C(val s: String = ""); val C = new C() {} }
                                                    ^
three errors found