OpenEuphoria

This test needs to be updated to not refer to os:DOS32, which no longer exists:

$ eui -i ../include/ t_complex-assignment.e 
t_complex-assignment.e:27 
<0074>:: Errors resolving the following references: 
    t_complex-assignment.e (46): DOS32 
    t_complex-assignment.e (32): DOS32 
    t_complex-assignment.e (27): DOS32 
 
                                                    os:DOS32, {}, ), 
                                                           ^