vlib/v/parser/tests/enum_method_duplicated_err.vv:13:14: error: duplicate method `has`, `has` is an enum type built-in method
   11 | }
   12 | 
   13 | fn (f Flags) has(f2 Flags) bool {
      |              ~~~
   14 |     return f & f2 > 0
   15 | }