Add #[track_caller] to test utilities that involve marked text (#32043)

Release Notes:

- N/A

crates/editor/src/test.rs

@@ -45,6 +45,7 @@ pub fn test_font() -> Font {
 }
 
 // Returns a snapshot from text containing '|' character markers with the markers removed, and DisplayPoints for each one.
+#[track_caller]
 pub fn marked_display_snapshot(
     text: &str,
     cx: &mut gpui::App,
@@ -83,6 +84,7 @@ pub fn marked_display_snapshot(
     (snapshot, markers)
 }
 
+#[track_caller]
 pub fn select_ranges(
     editor: &mut Editor,
     marked_text: &str,