only set "overruled by outer forbid" once for lint groups, by group name #42874
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Long ago, in the before-time, the find_lint method was created with the
unused_variables ("unused_variable" in the singular, as it was called at
the time) attribute in anticipation of using the session and span in the
handling of renamed lints (31b7d64), and indeed, the session and span
came to be used in this method, while the unused_variables attribute
remained (1ad1e2e). In modern times, the session and span are again no
longer used (ca81d3d); it seems we can safely prune them from the
method signature, for justice, and mercy.
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Previously, conflicting forbid/allow attributes for a lint group would result in a separate "allow(L) overruled by outer forbid(L)" error for every lint L in the group. This was needlessly and annoyingly verbose; we prefer to just have one error pointing out the conflicting attributes. Resolves rust-lang#42873.
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Jun 27, 2017
…bid, r=nikomatsakis only set "overruled by outer forbid" once for lint groups, by group name Previously, conflicting forbid/allow attributes for a lint group would result in a separate "allow(L) overruled by outer forbid(L)" error for every lint L in the group. This was needlessly and annoyingly verbose; we prefer to just have one error pointing out the conflicting attributes. (Also, while we're touching context.rs, clean up some unused arguments.) Resolves rust-lang#42873.
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Previously, conflicting forbid/allow attributes for a lint group would
result in a separate "allow(L) overruled by outer forbid(L)" error for
every lint L in the group. This was needlessly and annoyingly verbose;
we prefer to just have one error pointing out the conflicting
attributes.
(Also, while we're touching context.rs, clean up some unused arguments.)
Resolves #42873.