### Godot version

Godot 4.0 Beta 11

### System information

Linux Ubunutu

### Issue description

Godot's 3.x project converter to 4.0 seems to be missing the conversion for two drag data related functions.

In 3.x the function for can drop data, was named  `can_drop_data` in 4.0 it is `_can_drop_data`.
And likewise 3.x had `drop_data` and 4.0 has `_drop_data`.

These two functions were not converted by the project converter (and were hard to notice)!


### Steps to reproduce

Convert a 3.x project to 4.0 with the functions: `can_drop_data` it will not convert to `_can_drop_data` nor `drop_data` to `_drop_data`.



### Minimal reproduction project

N/A
{ "change_scene_to", "change_scene_to_packed" , 
	{ "clip_polygons_2d", "clip_polygons" , 
	{ "clip_polyline_with_polygon_2d", "clip_polyline_with_polygon" , 
	{ "commit_handle", "_commit_handle" , 
	{ "convex_hull_2d", "convex_hull" , 
	{ "create_gizmo", "_create_gizmo" , 
	{ "cursor_get_blink_speed", "get_caret_blink_interval" , 
	{ "cursor_get_column", "get_caret_column" , 
	{ "cursor_get_line", "get_caret_line" , 
	{ "cursor_set_blink_enabled", "set_caret_blink_enabled" , 
	{ "cursor_set_blink_speed", "set_caret_blink_interval" , 
	{ "cursor_set_column", "set_caret_column" , 
	{ "cursor_set_line", "set_caret_line" , 
	{ "damped_spring_joint_create", "joint_make_damped_spring" , 
	{ "damped_string_joint_get_param", "damped_spring_joint_get_param" , 
	{ "damped_string_joint_set_param", "damped_spring_joint_set_param" , 
	{ "dectime", "move_toward" , 
	{ "delete_char_at_cursor", "delete_char_at_caret" , 
	{ "deselect_items", "deselect_all" , 
	{ "disable_plugin", "_disable_plugin" , 
	{ "drop_data_fw", "_drop_data_fw" , 
	{ "exclude_polygons_2d", "exclude_polygons" , 
	{ "find_node", "find_child" , 
	{ "find_scancode_from_string", "find_keycode_from_string" , 
	{ "forward_canvas_draw_over_viewport", "_forward_canvas_draw_over_viewport" , 
	{ "forward_canvas_force_draw_over_viewport", "_forward_canvas_force_draw_over_viewport" , 
	{ "forward_canvas_gui_input", "_forward_canvas_gui_input" , 
	{ "forward_spatial_draw_over_viewport", "_forward_3d_draw_over_viewport" , 
	{ "forward_spatial_force_draw_over_viewport", "_forward_3d_force_draw_over_viewport" , 
	{ "forward_spatial_gui_input", "_forward_3d_gui_input" ,