[gnome-shell] appDisplay: Factor out function

[Florian Müllner <fmuellner src gnome org>]

commit 5d27a5a42a7e3e36eb88c54b63a2b314480705d0
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Nov 13 14:34:22 2020 -0300

    appDisplay: Factor out function
    
    The function to update the multiline state of the title label
    will be reused by the next commit, so move it into a separate
    method.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1496

 js/ui/appDisplay.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 4bc662ea9a..9c09a84c97 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1495,7 +1495,7 @@ class AppViewItem extends St.Button {
         }
     }
 
-    _onHover() {
+    _updateMultiline() {
         if (!this.icon.label)
             return;
 
@@ -1524,6 +1524,10 @@ class AppViewItem extends St.Button {
         });
     }
 
+    _onHover() {
+        this._updateMultiline();
+    }
+
     _onDragBegin() {
         this._dragging = true;
         this.scaleAndFade();