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## Summary This PR builds on the changes in #16220 to pass a target Python version to the parser. It also adds the `Parser::unsupported_syntax_errors` field, which collects version-related syntax errors while parsing. These syntax errors are then turned into `Message`s in ruff (in preview mode). This PR only detects one syntax error (`match` statement before Python 3.10), but it has been pretty quick to extend to several other simple errors (see #16308 for example). ## Test Plan The current tests are CLI tests in the linter crate, but these could be supplemented with inline parser tests after #16357. I also tested the display of these syntax errors in VS Code:   --------- Co-authored-by: Alex Waygood <alex.waygood@gmail.com> |
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| .. | ||
| lexer | ||
| parser | ||
| snapshots | ||
| error.rs | ||
| lexer.rs | ||
| lib.rs | ||
| string.rs | ||
| token.rs | ||
| token_set.rs | ||
| token_source.rs | ||
| typing.rs | ||