Testing Symbol.isAbstract...
=======class C=======
class C => true
constructor C => false
value x1 => true
value x2 => false
value x2 => false
method y1 => true
method y2 => false
type T1 => true
type T2 => false
=======trait T=======
trait T => true
method $init$ => false
value z1 => true
value z2 => false
value z2 => false
method w1 => true
method w2 => false
type U1 => true
type U2 => false
=======class D=======
class D => false
constructor D => false
value x1 => false
value x1 => false
method y1 => false
=======object M=======
object M => false
constructor M => false