verilog, macro, return different prefix when capf grouped with other company-backend

[my2817]

example code:

`define foo_bar 123
initial begin
   $display("macro=%d", `foo_ba);
end

company-backends :

(setq company-backends
              '((
                 company-capf
                 company-dabbrev-code
                 :separate)
                ))

when cursor goto the end of macro "foo_ba" at line 3，company-capf return prefix:"foo-ba"，citre work well. But company-dabbrev-code return prefix "foo-ba", it doesn't work.

https://github.com/universal-ctags/ctags/pull/3653 is going to give macro a unique kind:define, maybe we can use this infomation.

[AmaiKinono]

Close as this is not Citre's problem.