gh-113877: Fix Tkinter method winfo_pathname() on 64-bit Windows (GH-113900)

winfo_id() converts the result of "winfo id" command to integer, but
"winfo pathname" command requires an argument to be a hexadecimal number
on Win64.

Lib/tkinter/__init__.py

@@ -1260,6 +1260,8 @@ class Misc:
 
     def winfo_pathname(self, id, displayof=0):
         """Return the pathname of the widget given by ID."""
+        if isinstance(id, int):
+            id = hex(id)
         args = ('winfo', 'pathname') \
                + self._displayof(displayof) + (id,)
         return self.tk.call(args)