Fix test fails

Author: sharktide

Lib/tkinter/__init__.py

@@ -4084,7 +4084,7 @@ def search_all(self, pattern, index, stopindex=None, *,
         args.append(index)
         if stopindex: args.append(stopindex)
         result = self.tk.call(tuple(args))
-        return self._tk.splitlist(result)
+        return self.tk.splitlist(result)
 
     def see(self, index):
         """Scroll such that the character at INDEX is visible."""