debugger: Add run to cursor and evaluate selected text actions (#28405)

## Summary

### Actions

This PR implements actions that allow a user to "run to cursor" and
"evaluate selected text" while there's an active debug session and
exposes the functionality to the UI as well.

- Run to cursor: Can be accessed by right clicking on the gutter
- Evaluate selected text: Can be accessed by selecting text then right
clicking in the editor

### Bug fixes

I also fixed these bugs as well

- Panic when using debugger: Stop action
- Debugger actions command palette filter not working properly in all
cases
- We stopped displaying the correct label in the session's context menu
when a session was terminated

Release Notes:

- N/A

---------

Co-authored-by: Max Brunsfeld <max@zed.dev>
Co-authored-by: Remco Smits <djsmits12@gmail.com>

crates/editor/Cargo.toml

@@ -35,6 +35,7 @@ assets.workspace = true
 client.workspace = true
 clock.workspace = true
 collections.workspace = true
+command_palette_hooks.workspace = true
 convert_case.workspace = true
 db.workspace = true
 buffer_diff.workspace = true

crates/editor/src/actions.rs

@@ -408,6 +408,8 @@ actions!(
         DisableBreakpoint,
         EnableBreakpoint,
         EditLogBreakpoint,
+        DebuggerRunToCursor,
+        DebuggerEvaluateSelectedText,
         ToggleAutoSignatureHelp,
         ToggleGitBlameInline,
         OpenGitBlameCommit,

crates/editor/src/editor.rs

@@ -6415,6 +6415,9 @@ impl Editor {
             "Set Breakpoint"
         };
 
+        let run_to_cursor = command_palette_hooks::CommandPaletteFilter::try_global(cx)
+            .map_or(false, |filter| !filter.is_hidden(&DebuggerRunToCursor));
+
         let toggle_state_msg = breakpoint.as_ref().map_or(None, |bp| match bp.1.state {
             BreakpointState::Enabled => Some("Disable"),
             BreakpointState::Disabled => Some("Enable"),
@@ -6426,6 +6429,21 @@ impl Editor {
         ui::ContextMenu::build(window, cx, |menu, _, _cx| {
             menu.on_blur_subscription(Subscription::new(|| {}))
                 .context(focus_handle)
+                .when(run_to_cursor, |this| {
+                    let weak_editor = weak_editor.clone();
+                    this.entry("Run to cursor", None, move |window, cx| {
+                        weak_editor
+                            .update(cx, |editor, cx| {
+                                editor.change_selections(None, window, cx, |s| {
+                                    s.select_ranges([Point::new(row, 0)..Point::new(row, 0)])
+                                });
+                            })
+                            .ok();
+
+                        window.dispatch_action(Box::new(DebuggerRunToCursor), cx);
+                    })
+                    .separator()
+                })
                 .when_some(toggle_state_msg, |this, msg| {
                     this.entry(msg, None, {
                         let weak_editor = weak_editor.clone();

crates/editor/src/mouse_context_menu.rs

@@ -1,10 +1,10 @@
-use crate::CopyAndTrim;
-use crate::actions::FormatSelections;
 use crate::{
-    Copy, CopyPermalinkToLine, Cut, DisplayPoint, DisplaySnapshot, Editor, EditorMode,
-    FindAllReferences, GoToDeclaration, GoToDefinition, GoToImplementation, GoToTypeDefinition,
-    Paste, Rename, RevealInFileManager, SelectMode, ToDisplayPoint, ToggleCodeActions,
-    actions::Format, selections_collection::SelectionsCollection,
+    Copy, CopyAndTrim, CopyPermalinkToLine, Cut, DebuggerEvaluateSelectedText, DisplayPoint,
+    DisplaySnapshot, Editor, EditorMode, FindAllReferences, GoToDeclaration, GoToDefinition,
+    GoToImplementation, GoToTypeDefinition, Paste, Rename, RevealInFileManager, SelectMode,
+    ToDisplayPoint, ToggleCodeActions,
+    actions::{Format, FormatSelections},
+    selections_collection::SelectionsCollection,
 };
 use gpui::prelude::FluentBuilder;
 use gpui::{Context, DismissEvent, Entity, Focusable as _, Pixels, Point, Subscription, Window};
@@ -169,9 +169,19 @@ pub fn deploy_context_menu(
                 .is_some()
         });
 
+        let evaluate_selection = command_palette_hooks::CommandPaletteFilter::try_global(cx)
+            .map_or(false, |filter| {
+                !filter.is_hidden(&DebuggerEvaluateSelectedText)
+            });
+
         ui::ContextMenu::build(window, cx, |menu, _window, _cx| {
             let builder = menu
                 .on_blur_subscription(Subscription::new(|| {}))
+                .when(evaluate_selection && has_selections, |builder| {
+                    builder
+                        .action("Evaluate Selection", Box::new(DebuggerEvaluateSelectedText))
+                        .separator()
+                })
                 .action("Go to Definition", Box::new(GoToDefinition))
                 .action("Go to Declaration", Box::new(GoToDeclaration))
                 .action("Go to Type Definition", Box::new(GoToTypeDefinition))