### 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
{ "get_scancode_with_modifiers", "get_keycode_with_modifiers" , 
	{ "get_selected_path", "get_current_directory" , 
	{ "get_shift", "is_shift_pressed" , 
	{ "get_size_override", "get_size_2d_override" , 
	{ "get_slide_count", "get_slide_collision_count" , 
	{ "get_slips_on_spe", "get_slide_on_spe" , 
	{ "get_space_override_mode", "get_gravity_space_override_mode" , 
	{ "get_spatial_node", "get_node_3d" , 
	{ "get_speed", "get_vecity" , 
	{ "get_stylebox_types", "get_stylebox_type_list" , 
	{ "get_surface_material", "get_surface_override_material" , 
	{ "get_surface_material_count", "get_surface_override_material_count" , 
	{ "get_tab_disabled", "is_tab_disabled" , 
	{ "get_tab_hidden", "is_tab_hidden" , 
	{ "get_text_align", "get_text_alignment" , 
	{ "get_theme_item_types", "get_theme_item_type_list" , 
	{ "get_timer_process_mode", "get_timer_process_callback" , 
	{ "get_translation", "get_pition" , 
	{ "get_unit_db", "get_volume_db" , 
	{ "get_unit_offset", "get_progress_ratio" , 
	{ "get_use_in_baked_light", "is_baking_navigation" , 
	{ "get_used_cells_by_id", "get_used_cells" , 
	{ "get_v_scrollbar", "get_v_scroll_bar" , 
	{ "get_visible_name", "_get_visible_name" , 
	{ "get_window_layout", "_get_window_layout" , 
	{ "get_word_under_cursor", "get_word_under_caret" , 
	{ "get_world", "get_world_3d" , 
	{ "get_zfar", "get_far" , 
	{ "get_znear", "get_near" , 
	{ "groove_joint_create", "joint_make_groove" ,