### 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
{ "viewport_set_use_arvr", "viewport_set_use_xr" , 
	{ "warp_mouse_pition", "warp_mouse" , 
	{ "world_to_map", "cal_to_map" , 
	{ "set_shader_param", "set_shader_parameter" , 
	{ "get_shader_param", "get_shader_parameter" , 
	{ "set_uniform_name", "set_parameter_name" , 
	{ "get_uniform_name", "get_parameter_name" , 
	
	
	
	{ "clamped", "clamp" , 
	{ "get_rotation_quat", "get_rotation_quaternion" , 
	{ "grow_margin", "grow_side" , 
	{ "invert", "reverse" , 
	{ "is_abs_path", "is_absolute_path" , 
	{ "is_valid_integer", "is_valid_int" , 
	{ "linear_interpolate", "lerp" , 
	{ "find_last", "rfind" , 
	{ "to_ascii", "to_ascii_buffer" , 
	{ "to_utf8", "to_utf8_buffer" , 
	{ "to_wchar", "to_utf32_buffer" , 
	
	
	{ "bytes2var", "bytes_to_var" ,
	{ "bytes2var_with_objects", "bytes_to_var_with_objects" ,
	{ "db2linear", "db_to_linear" ,
	{ "deg2rad", "deg_to_rad" ,
	{ "linear2db", "linear_to_db" ,
	{ "rad2deg", "rad_to_deg" ,
	{ "rand_range", "randf_range" ,