Normally `#![feature(...)]` shouldn't change behavior, but custom attributes in particular are in the process of retirement, and we should not produce a message telling to enable them. It also helps with unifying diagnostics for unresolved macros. |
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|---|---|---|
| .. | ||
| reserved-attr-on-macro.rs | ||
| reserved-attr-on-macro.stderr | ||
| reserved-become.rs | ||
| reserved-become.stderr | ||