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Rollup merge of #93853 - steffahn:map_by_value, r=wesleywiser

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Make all `hir::Map` methods consistently by-value

`hir::Map` only consists of a single reference (as part of the contained `TyCtxt`) anyways, so copying is literally zero overhead compared to passing a reference
This commit is contained in:
Matthias Krüger 2022-02-11 07:48:06 +01:00 • committed by GitHub
commit ddba967855
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8 changed files with 108 additions and 111 deletions
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compiler/rustc_trait_selection/src/traits/error_reporting/on_unimplemented.rs
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@ -77,7 +77,7 @@ impl<'a, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'a, 'tcx> {
/// Used to set on_unimplemented's `ItemContext`
/// to be the enclosing (async) block/function/closure
fn describe_enclosure(&self, hir_id: hir::HirId) -> Option<&'static str> {
let hir = &self.tcx.hir();
let hir = self.tcx.hir();
let node = hir.find(hir_id)?;
match &node {
hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, _, body_id), .. }) => {