gpui: Fix debug selectors with cached views (#64433)

The debug-selector test mapping skipped cached views that weren't
rendered. Make sure we include them

---

Release Notes:

- [GPUI] N/A

crates/gpui/src/elements/div.rs

@@ -2522,8 +2522,7 @@ impl Interactivity {
                 if let Some(debug_selector) = &self.debug_selector {
                     window
                         .next_frame
-                        .debug_bounds
-                        .insert(debug_selector.clone(), bounds);
+                        .record_debug_bounds(debug_selector.clone(), bounds);
                 }
 
                 self.paint_hover_group_handler(window, cx);

crates/gpui/src/window.rs

@@ -991,6 +991,8 @@ pub(crate) struct Frame {
     pub(crate) cursor_styles: Vec<CursorStyleRequest>,
     #[cfg(any(test, feature = "test-support"))]
     pub(crate) debug_bounds: FxHashMap<String, Bounds<Pixels>>,
+    #[cfg(any(test, feature = "test-support"))]
+    debug_bounds_records: Vec<(String, Bounds<Pixels>)>,
     #[cfg(any(feature = "inspector", debug_assertions))]
     pub(crate) next_inspector_instance_ids: FxHashMap<Rc<crate::InspectorElementPath>, usize>,
     #[cfg(any(feature = "inspector", debug_assertions))]
@@ -1011,6 +1013,8 @@ pub(crate) struct PrepaintStateIndex {
 #[derive(Clone, Default)]
 pub(crate) struct PaintIndex {
     scene_index: usize,
+    #[cfg(any(test, feature = "test-support"))]
+    debug_bounds_index: usize,
     mouse_listeners_index: usize,
     input_handlers_index: usize,
     cursor_styles_index: usize,
@@ -1020,6 +1024,12 @@ pub(crate) struct PaintIndex {
 }
 
 impl Frame {
+    #[cfg(any(test, feature = "test-support"))]
+    pub(crate) fn record_debug_bounds(&mut self, selector: String, bounds: Bounds<Pixels>) {
+        self.debug_bounds.insert(selector.clone(), bounds);
+        self.debug_bounds_records.push((selector, bounds));
+    }
+
     pub(crate) fn new(dispatch_tree: DispatchTree) -> Self {
         Frame {
             focus: None,
@@ -1038,6 +1048,8 @@ impl Frame {
 
             #[cfg(any(test, feature = "test-support"))]
             debug_bounds: FxHashMap::default(),
+            #[cfg(any(test, feature = "test-support"))]
+            debug_bounds_records: Vec::new(),
 
             #[cfg(any(feature = "inspector", debug_assertions))]
             next_inspector_instance_ids: FxHashMap::default(),
@@ -1066,6 +1078,7 @@ impl Frame {
         #[cfg(any(test, feature = "test-support"))]
         {
             self.debug_bounds.clear();
+            self.debug_bounds_records.clear();
         }
 
         #[cfg(any(feature = "inspector", debug_assertions))]
@@ -3860,6 +3873,8 @@ impl Window {
     pub(crate) fn paint_index(&self) -> PaintIndex {
         PaintIndex {
             scene_index: self.next_frame.scene.len(),
+            #[cfg(any(test, feature = "test-support"))]
+            debug_bounds_index: self.next_frame.debug_bounds_records.len(),
             mouse_listeners_index: self.next_frame.mouse_listeners.len(),
             input_handlers_index: self.next_frame.input_handlers.len(),
             cursor_styles_index: self.next_frame.cursor_styles.len(),
@@ -3870,6 +3885,14 @@ impl Window {
     }
 
     pub(crate) fn reuse_paint(&mut self, range: Range<PaintIndex>) {
+        // Cached elements still exist in the frame even when their paint methods don't run.
+        #[cfg(any(test, feature = "test-support"))]
+        for (selector, bounds) in &self.rendered_frame.debug_bounds_records
+            [range.start.debug_bounds_index..range.end.debug_bounds_index]
+        {
+            self.next_frame
+                .record_debug_bounds(selector.clone(), *bounds);
+        }
         self.next_frame.cursor_styles.extend(
             self.rendered_frame.cursor_styles
                 [range.start.cursor_styles_index..range.end.cursor_styles_index]