vlib/v/checker/tests/enum_field_value_duplicate_c.vv:6:16: error: enum value `1` already exists
    4 |     gpu         = (1 << 1)
    5 |     accelerator = (1 << 2)
    6 |     default     = (1 << 0)
      |                   ~~~~~~~~
    7 |     all         = 0xFFFFFFFF
    8 | }
Details: use `@[_allow_multiple_values]` attribute to allow multiple enum values. Use only when it is needed