constrs.scala:6: error: type T is not a member of object test
    def this(y: Int)(z: Int)(t: this.T) = { this(this.u + y + z); Console.println(x) }
                                     ^
constrs.scala:6: error: value u is not a member of object test
    def this(y: Int)(z: Int)(t: this.T) = { this(this.u + y + z); Console.println(x) }
                                                      ^
constrs.scala:10: error: called constructor's definition must precede calling constructor's definition
    def this() = this("abc")
                 ^
constrs.scala:12: error: constructor invokes itself
    def this(x: Boolean) = this(x)
                           ^
constrs.scala:16: error: type mismatch;
 found   : Int(1)
 required: a
    def this() = this(1)
                      ^
5 errors found