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León Orell Valerian Liehr
626db06409
Add context to "const in pattern" errors *Each commit addresses specific diagnostics.* - Add primary span labels - Point at `const` item, and `const` generic param definition - Reword messages and notes - Point at generic param through which an associated `const` is being referenced - Silence const in pattern with evaluation errors when they come from `const` items that already emit a diagnostic - On non-structural type in const used as pattern, point at the type that should derive `PartialEq`