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The parser currently uses single quotes to wrap tokens. This is inconsistent with the rest of ruff/ty, which use backticks. For example, see the inconsistent diagnostics produced in this simple example: https://play.ty.dev/0a9d6eab-6599-4a1d-8e40-032091f7f50f Consistently wrapping tokens in backticks produces uniform diagnostics. Following the style decision of #723, in #2889 some quotes were already switched into backticks. This is also in line with Rust's guide on diagnostics (https://rustc-dev-guide.rust-lang.org/diagnostics.html#diagnostic-structure): > When code or an identifier must appear in a message or label, it should be surrounded with backticks
Markdown files within the mdtest/ subdirectory are tests of type inference and type checking;
executed by the tests/mdtest.rs integration test.
See crates/ty_test/README.md for documentation of this test format.