vim: Fix d shift-g not deleting until EOD if soft-wrap is on (#20160)

This previously didn't work: `d G` would delete to the end of the "first
of the soft-wrapped lines" of the last line.

To fix it, we special case the delete behavior for `shift-g`, which is
what Neovim also seems to do.


Release Notes:

- Fixed `d G` in Vim mode not deleting until the actual end of the
document if soft-wrap is turned on.

crates/vim/src/test.rs

@@ -730,6 +730,24 @@ async fn test_wrapped_motions(cx: &mut gpui::TestAppContext) {
     });
 }
 
+#[gpui::test]
+async fn test_wrapped_delete_end_document(cx: &mut gpui::TestAppContext) {
+    let mut cx = NeovimBackedTestContext::new(cx).await;
+
+    cx.set_shared_wrap(12).await;
+
+    cx.set_shared_state(indoc! {"
+                aaˇaaaaaaaaaaaaaaaaaa
+                bbbbbbbbbbbbbbbbbbbb
+                cccccccccccccccccccc"
+    })
+    .await;
+    cx.simulate_shared_keystrokes("d shift-g i z z z").await;
+    cx.shared_state().await.assert_eq(indoc! {"
+                zzzˇ"
+    });
+}
+
 #[gpui::test]
 async fn test_paragraphs_dont_wrap(cx: &mut gpui::TestAppContext) {
     let mut cx = NeovimBackedTestContext::new(cx).await;