Fix `--remap-path-prefix` not correctly remapping `rust-src` component paths and unify handling of path mapping with virtualized paths#83813

Merged

bors merged 12 commits intorust-lang:masterfrom

cbeuw:remap-std

May 12, 2021

Commits on May 4, 2021

Commits on May 5, 2021

Rename RealFileName::Named to LocalPath and Devirtualized to Remapped
cbeuw
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Make local_path in RealFileName::Remapped Option to be removed in exported metadata
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Use RealFileName for Session::working_dir as it may also be remapped
cbeuw
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Emit RealFileName::Remapped on expanded relative path if working_dir has been remapped
cbeuw
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Use local name if available in write_out_deps
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Remove impl Display for FileName and add FileNameDisplay wrapper type
cbeuw
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Revamp RealFileName public methods
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Use local and remapped paths where appropriate
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Add -Z simulate-remapped-rust-src-base option to simulate path virutalisation during bootstrapping
cbeuw
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Commits on May 10, 2021

Split span_to_string into span_to_diagnostic/embeddable_string
cbeuw
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