### 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
{ "is_network_master", "is_multiplayer_authority" , 
	{ "is_network_server", "is_server" , 
	{ "is_normalmap", "is_normal_map" , 
	{ "is_refusing_new_network_connections", "is_refusing_new_connections" , 
	{ "is_region", "is_region_enabled" , 
	{ "is_rotating", "is_ignoring_rotation" , 
	{ "is_scancode_unicode", "is_keycode_unicode" , 
	{ "is_selectable_when_hidden", "_is_selectable_when_hidden" , 
	{ "is_set_as_toplevel", "is_set_as_top_level" , 
	{ "is_shortcut", "matches_event" , 
	{ "is_size_override_stretch_enabled", "is_size_2d_override_stretch_enabled" , 
	{ "is_sort_enabled", "is_y_sort_enabled" , 
	{ "is_static_body", "is_able_to_sleep" , 
	{ "is_v_drag_enabled", "is_drag_vertical_enabled" , 
	{ "joint_create_cone_twist", "joint_make_cone_twist" , 
	{ "joint_create_generic_6dof", "joint_make_generic_6dof" , 
	{ "joint_create_hinge", "joint_make_hinge" , 
	{ "joint_create_pin", "joint_make_pin" , 
	{ "joint_create_slider", "joint_make_slider" , 
	{ "line_intersects_line_2d", "line_intersects_line" , 
	{ "ad_from_gbals", "ad_from_project_settings" , 
	{ "ad_interactive", "ad_threaded_request" , 
	{ "make_convex_from_brothers", "make_convex_from_siblings" , 
	{ "make_visible", "_make_visible" , 
	{ "merge_polygons_2d", "merge_polygons" , 
	{ "mesh_surface_get_format", "mesh_surface_get_format_attribute_stride" , 
	{ "mesh_surface_update_region", "mesh_surface_update_attribute_region" , 
	{ "move_to_bottom", "move_after" , 
	{ "move_to_top", "move_before" , 
	{ "multimesh_alcate", "multimesh_alcate_data" ,