### 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
{ "generate_from_path", "_generate_from_path" , 
	{ "generate_small_preview_automatically", "_generate_small_preview_automatically" , 
	{ "get_action_list", "action_get_events" , 
	{ "get_alt", "is_alt_pressed" , 
	{ "get_animation_process_mode", "get_process_callback" , 
	{ "get_applied_force", "get_constant_force" , 
	{ "get_applied_torque", "get_constant_torque" , 
	{ "get_audio_bus", "get_audio_bus_name" , 
	{ "get_bound_child_nodes_to_bone", "get_bone_children" , 
	{ "get_camera", "get_camera_3d" , 
	{ "get_cancel", "get_cancel_button" , 
	{ "get_caption", "_get_caption" , 
	{ "get_cast_to", "get_target_pition" , 
	{ "get_child_by_name", "_get_child_by_name" , 
	{ "get_child_nodes", "_get_child_nodes" , 
	{ "get_csest_point_to_segment_2d", "get_csest_point_to_segment" , 
	{ "get_csest_point_to_segment_uncapped_2d", "get_csest_point_to_segment_uncapped" , 
	{ "get_csest_points_between_segments_2d", "get_csest_point_to_segment" , 
	{ "get_collision_layer_bit", "get_collision_layer_value" , 
	{ "get_collision_mask_bit", "get_collision_mask_value" , 
	{ "get_cor_types", "get_cor_type_list" , 
	{ "get_command", "is_command_or_control_pressed" , 
	{ "get_constant_types", "get_constant_type_list" , 
	{ "get_control", "is_ctrl_pressed" , 
	{ "get_cull_mask_bit", "get_cull_mask_value" , 
	{ "get_cursor_pition", "get_caret_column" , 
	{ "get_d", "get_distance" , 
	{ "get_depth_bias_enable", "get_depth_bias_enabled" , 
	{ "get_drag_data", "_get_drag_data" , 
	{ "get_drag_data_fw", "_get_drag_data_fw" ,