Rename PreorderVisitor to SourceOrderVisitor (#11798)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

crates/ruff_python_ast_integration_tests/tests/source_order.rs

@@ -2,7 +2,7 @@ use std::fmt::{Debug, Write};
 
 use insta::assert_snapshot;
 
-use ruff_python_ast::visitor::preorder::{PreorderVisitor, TraversalSignal};
+use ruff_python_ast::visitor::source_order::{SourceOrderVisitor, TraversalSignal};
 use ruff_python_ast::{AnyNodeRef, BoolOp, CmpOp, Operator, Singleton, UnaryOp};
 use ruff_python_parser::{parse, Mode};
 
@@ -10,7 +10,7 @@ use ruff_python_parser::{parse, Mode};
 fn function_arguments() {
     let source = r"def a(b, c,/, d, e = 20, *args, named=5, other=20, **kwargs): pass";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -19,7 +19,7 @@ fn function_arguments() {
 fn function_positional_only_with_default() {
     let source = r"def a(b, c = 34,/, e = 20, *args): pass";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -28,7 +28,7 @@ fn function_positional_only_with_default() {
 fn compare() {
     let source = r"4 < x < 5";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -37,7 +37,7 @@ fn compare() {
 fn list_comprehension() {
     let source = "[x for x in numbers]";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -46,7 +46,7 @@ fn list_comprehension() {
 fn dict_comprehension() {
     let source = "{x: x**2 for x in numbers}";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -55,7 +55,7 @@ fn dict_comprehension() {
 fn set_comprehension() {
     let source = "{x for x in numbers}";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -70,7 +70,7 @@ match x:
         ...
 ";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -87,7 +87,7 @@ class A:
     pass
 ";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -96,7 +96,7 @@ class A:
 fn type_aliases() {
     let source = r"type X[T: str, U, *Ts, **P] = list[T]";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -105,7 +105,7 @@ fn type_aliases() {
 fn class_type_parameters() {
     let source = r"class X[T: str, U, *Ts, **P]: ...";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -114,7 +114,7 @@ fn class_type_parameters() {
 fn function_type_parameters() {
     let source = r"def X[T: str, U, *Ts, **P](): ...";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -123,7 +123,7 @@ fn function_type_parameters() {
 fn string_literals() {
     let source = r"'a' 'b' 'c'";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -132,7 +132,7 @@ fn string_literals() {
 fn bytes_literals() {
     let source = r"b'a' b'b' b'c'";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
@@ -141,12 +141,12 @@ fn bytes_literals() {
 fn f_strings() {
     let source = r"'pre' f'foo {bar:.{x}f} baz'";
 
-    let trace = trace_preorder_visitation(source);
+    let trace = trace_source_order_visitation(source);
 
     assert_snapshot!(trace);
 }
 
-fn trace_preorder_visitation(source: &str) -> String {
+fn trace_source_order_visitation(source: &str) -> String {
     let parsed = parse(source, Mode::Module).unwrap();
 
     let mut visitor = RecordVisitor::default();
@@ -173,7 +173,7 @@ impl RecordVisitor {
     }
 }
 
-impl<'a> PreorderVisitor<'a> for RecordVisitor {
+impl<'a> SourceOrderVisitor<'a> for RecordVisitor {
     fn enter_node(&mut self, node: AnyNodeRef<'a>) -> TraversalSignal {
         self.emit(&node.kind());
         self.depth += 1;