t9286c.scala:8: error: name clash between defined and inherited member:
def foo(m: M[_ >: String]): Int in trait T and
private def foo(m: M[_ >: Any]): Int at line 8
have same type after erasure: (m: M)Int
    def foo(m: M[_ >: Any]) = 0 // Expected: "same type after erasure"
        ^
one error found