No real changes, just use clearer names for wxMSW wxToolTip methods.

Rename wxToolTip::DoAddOtherWindow() to DoAddHWND() as it should be used for
adding any window associated with the tooltip, either the main or an auxiliary
one. And rename wxToolTip::Add() to AddOtherWindow() because it shouldn't be
used for the main window.

See #14184.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71096 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/tooltip.h

@@ -60,7 +60,7 @@ public:
     static void RelayEvent(WXMSG *msg);
 
     // add a window to the tooltip control
-    void Add(WXHWND hwnd);
+    void AddOtherWindow(WXHWND hwnd);
 
     // remove any tooltip from the window
     static void Remove(WXHWND hwnd, unsigned int id, const wxRect& rc);
@@ -72,7 +72,7 @@ public:
 
 private:
     // Adds a window other than our main m_window to this tooltip.
-    void DoAddOtherWindow(WXHWND hWnd);
+    void DoAddHWND(WXHWND hWnd);
 
     // Perform the specified operation for the given window only.
     void DoSetTip(WXHWND hWnd);