### 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
{ "range_lerp", "remap" ,
	{ "stepify", "snapped" ,
	{ "str2var", "str_to_var" ,
	{ "var2str", "var_to_str" ,
	{ "var2bytes", "var_to_bytes" ,
	{ "var2bytes_with_objects", "var_to_bytes_with_objects" ,
	
	
	{ "dict2inst", "dict_to_inst" ,
	{ "inst2dict", "inst_to_dict" ,
	{ ,  ,
;
static const char *csharp_function_renames[][2] = {