Description

There are now 3 OperatorPrecedence structs in ruff

• Formatter (only the expression one, the pattern one is different)
• Linter
• Parser

1. Move the Linter OperatorPrecedence struct into ruff-python-ast and expose a precedence() method on Expr (and `ExpressionRef) and ideally on each Expression node.
2. Try to replace some of the other OperatorPrecedence structs with the one now defined in the AST crate

Ideally, these would be two separate PRs