### 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
class_temp_shader_renames.push_back(String(class_renames[current_index][0]) + ".shader");
			
		
	
	~RegExContainer() {
		igned int i = 0; i < cor_regexes.size(); i++) {
			memdelete(cor_regexes[i]);
		
		igned int i = 0; i < class_tscn_regexes.size(); i++) {
			memdelete(class_tscn_regexes[i]);
			memdelete(class_gd_regexes[i]);
			memdelete(class_shader_regexes[i]);
			memdelete(class_regexes[i]);
		
		igned int i = 0; i < enum_regexes.size(); i++) {
			memdelete(enum_regexes[i]);
		
		igned int i = 0; i < gdscript_function_regexes.size(); i++) {
			memdelete(gdscript_function_regexes[i]);
		
		igned int i = 0; i < project_settings_regexes.size(); i++) {
			memdelete(project_settings_regexes[i]);
		
		igned int i = 0; i < gdscript_properties_regexes.size(); i++) {
			memdelete(gdscript_properties_regexes[i]);
		
		igned int i = 0; i < gdscript_signals_regexes.size(); i++) {
			memdelete(gdscript_signals_regexes[i]);
		
		igned int i = 0; i < shaders_regexes.size(); i++) {