rust/compiler
David Wood 2647a4812c macros: reuse SetOnce trait in diagnostic derive
`SetOnce` trait was introduced in the subdiagnostic derive to simplify
the code a little bit, re-use it in the diagnostic derive too.

Signed-off-by: David Wood <david.wood@huawei.com>
2022-04-29 02:12:10 +01:00
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