Extract LineIndex independent methods from Locator (#13938)

crates/ruff_python_semantic/Cargo.toml

@@ -17,7 +17,6 @@ ruff_macros = { workspace = true }
 ruff_python_ast = { workspace = true }
 ruff_python_parser = { workspace = true }
 ruff_python_stdlib = { workspace = true }
-ruff_source_file = { workspace = true }
 ruff_text_size = { workspace = true }
 
 bitflags = { workspace = true }

crates/ruff_python_semantic/src/binding.rs

@@ -8,7 +8,6 @@ use ruff_index::{newtype_index, IndexSlice, IndexVec};
 use ruff_python_ast::helpers::extract_handled_exceptions;
 use ruff_python_ast::name::QualifiedName;
 use ruff_python_ast::{self as ast, Stmt};
-use ruff_source_file::Locator;
 use ruff_text_size::{Ranged, TextRange};
 
 use crate::context::ExecutionContext;
@@ -228,8 +227,8 @@ impl<'a> Binding<'a> {
     }
 
     /// Returns the name of the binding (e.g., `x` in `x = 1`).
-    pub fn name<'b>(&self, locator: &Locator<'b>) -> &'b str {
-        locator.slice(self.range)
+    pub fn name<'b>(&self, source: &'b str) -> &'b str {
+        &source[self.range]
     }
 
     /// Returns the statement in which the binding was defined.

crates/ruff_python_semantic/src/reference.rs

@@ -4,7 +4,6 @@ use bitflags::bitflags;
 
 use ruff_index::{newtype_index, IndexSlice, IndexVec};
 use ruff_python_ast::ExprContext;
-use ruff_source_file::Locator;
 use ruff_text_size::{Ranged, TextRange};
 
 use crate::scope::ScopeId;
@@ -157,8 +156,8 @@ pub struct UnresolvedReference {
 
 impl UnresolvedReference {
     /// Returns the name of the reference.
-    pub fn name<'a>(&self, locator: &Locator<'a>) -> &'a str {
-        locator.slice(self.range)
+    pub fn name<'a>(&self, source: &'a str) -> &'a str {
+        &source[self.range]
     }
 
     /// The range of the reference in the source code.