8056984: Exception in compiler: java.lang.AssertionError: isSubClass T Summary: Must use type variable's captured bound as a method receiver, instead of the type variable itself, while checking if deferred attribution is needed. Reviewed-by: mcimadamore, vromero

^build/
^dist/
^drop/
^drop_included/
^webrev/
/nbproject/private/
^.hgtip