+Runtime error: Reciever is null (alt/rterror_null_receiver_alt1.nit:26)
true
false
-Reciever is null in rterror_null_receiver_alt1::Sys::(kernel::Sys::main) (alt/rterror_null_receiver_alt1.nit:26)
-,---- Stack trace -- - - -
-| rterror_null_receiver_alt1::Sys::(kernel::Sys::main) (alt/rterror_null_receiver_alt1.nit:23)
-`------------------- - - -