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Rollup merge of #103970 - oli-obk:unhide_unknown_spans, r=estebank

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Unhide unknown spans

r? ```@estebank```
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Dylan DPC 2022-11-12 12:02:51 +05:30 • committed by GitHub
commit fcbe990093
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17 changed files with 121 additions and 69 deletions
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4
compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs
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@ -2445,12 +2445,12 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
(Ok(l), Ok(r)) => l.line == r.line,
_ => true,
};
if !ident.span.overlaps(span) && !same_line {
if !ident.span.is_dummy() && !ident.span.overlaps(span) && !same_line {
multispan.push_span_label(ident.span, "required by a bound in this");
}
}
let descr = format!("required by a bound in `{}`", item_name);
if span != DUMMY_SP {
if !span.is_dummy() {
let msg = format!("required by this bound in `{}`", item_name);
multispan.push_span_label(span, msg);
err.span_note(multispan, &descr);