Remove parser dependency from ruff-python-ast (#6096)

crates/ruff_python_formatter/src/comments/visitor.rs

@@ -1,14 +1,15 @@
 use std::iter::Peekable;
 
 use ruff_text_size::{TextRange, TextSize};
-use rustpython_parser::ast::{
+use rustpython_ast::{
     Alias, Arg, ArgWithDefault, Arguments, Comprehension, Decorator, ElifElseClause, ExceptHandler,
     Expr, Keyword, MatchCase, Mod, Pattern, Ranged, Stmt, TypeParam, WithItem,
 };
 
 use ruff_formatter::{SourceCode, SourceCodeSlice};
 use ruff_python_ast::node::AnyNodeRef;
-use ruff_python_ast::source_code::{CommentRanges, Locator};
+use ruff_python_index::CommentRanges;
+use ruff_source_file::Locator;
 // The interface is designed to only export the members relevant for iterating nodes in
 // pre-order.
 #[allow(clippy::wildcard_imports)]