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Auto merge of #115214 - Urgau:rfc-3127-trim-paths, r=compiler-errors

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Implement rustc part of RFC 3127 trim-paths

This PR implements (or at least tries to) [RFC 3127 trim-paths](https://github.com/rust-lang/rust/issues/111540), the rustc part. That is `-Zremap-path-scope` with all of it's components/scopes.

`@rustbot` label: +F-trim-paths
This commit is contained in:
bors 2023-10-19 19:09:29 +00:00
commit 94c4e5c411
34 changed files with 580 additions and 92 deletions
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5
compiler/rustc_mir_transform/src/coverage/mod.rs
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@ -212,7 +212,10 @@ impl<'a, 'tcx> Instrumentor<'a, 'tcx> {
let tcx = self.tcx;
let source_map = tcx.sess.source_map();
let body_span = self.body_span;
let file_name = Symbol::intern(&self.source_file.name.prefer_remapped().to_string_lossy());
use rustc_session::RemapFileNameExt;
let file_name =
Symbol::intern(&self.source_file.name.for_codegen(self.tcx.sess).to_string_lossy());
for (bcb, spans) in coverage_spans.bcbs_with_coverage_spans() {
let counter_kind = self.coverage_counters.take_bcb_counter(bcb).unwrap_or_else(|| {