Expose ScintillaWX DoDragEnter() and DoDragLeave() methods.

These methods are needed to allow implementing alternative wxDropTargets, in
addition to the already public DoDragOver().

Closes #16010.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75977 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/stc/stc.h

@@ -5676,11 +5676,25 @@ public:
     */
     bool LoadFile(const wxString& filename);
 
+    /**
+       Allow for simulating a DnD DragEnter
+
+       @since 3.1.0
+    */
+    wxDragResult DoDragEnter(wxCoord x, wxCoord y, wxDragResult defaultRes);
+
     /**
        Allow for simulating a DnD DragOver
     */
     wxDragResult DoDragOver(wxCoord x, wxCoord y, wxDragResult defaultRes);
 
+    /**
+       Allow for simulating a DnD DragLeave
+
+       @since 3.1.0
+    */
+    void DoDragLeave();
+
     /**
        Allow for simulating a DnD DropText
     */