t6863.scala:38: warning: comparing values of types Unit and Unit using `==' will always yield true
    assert({ () => x}.apply == ())
                            ^
t6863.scala:42: warning: comparing values of types Unit and Unit using `==' will always yield true
    assert({ () => x}.apply == ())
                            ^
t6863.scala:46: warning: comparing values of types Unit and Unit using `==' will always yield true
    assert({ () => x}.apply == ())
                            ^
t6863.scala:59: warning: comparing values of types Unit and Unit using `==' will always yield true
    assert({ () => x }.apply == ())
                             ^
warning: there were four deprecation warnings (since 2.11.0); re-run with -deprecation for details