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Author SHA1 Message Date
Charlie Marsh
1334232168
Introduce ExpressionRef (#6637)
## Summary

This PR revives the `ExpressionRef` concept introduced in
https://github.com/astral-sh/ruff/pull/5644, motivated by the change we
want to make in https://github.com/astral-sh/ruff/pull/6575 to narrow
the type of the expression that can be passed to `parenthesized_range`.

## Test Plan

`cargo test`
2023-08-17 10:07:16 -04:00