Push a `char` instead of a `str` with len one into a String
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@ -1211,7 +1211,7 @@ fn construct_place_string(tcx: TyCtxt<'_>, place: &Place<'tcx>) -> String {
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ProjectionKind::Subslice => String::from("Subslice"),
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};
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if i != 0 {
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projections_str.push_str(",");
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projections_str.push(',');
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}
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projections_str.push_str(proj.as_str());
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}
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