### 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
;
Vector<String> rter3To4::check_for_custom_rename(Vector<String> &lines, String from, String to) {
	Vector<String> found_renames;
	RegEx reg = RegEx(String("\\b") + from + "\\b");
	CRASH_COND(!reg.is_valid());
	int current_line = 1;
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			TypedArray<RegExMatch> reg_match = reg.search_all(line);
			if (reg_match.size() > 0) {
				found_renames.append(line_formatter(current_line, from.replace("\\.", "."), to, line)); // Without replacing it will print "\.shader" instead ".shader".
			
		
		current_line++;
	
	return found_renames;
void rter3To4::rename_common(const char *array[][2], r<RegEx *> &cached_regexes, Vector<String> &lines) {
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			igned int current_index = 0; current_index < cached_regexes.size(); current_index++) {
				tains(array[current_index][0])) {
					line = cached_regexes[current_index]->sub(line, array[current_index][1], true);
				
			
		
	
Vector<String> rter3To4::check_for_rename_common(const char *array[][2], r<RegEx *> &cached_regexes, Vector<String> &lines) {
	Vector<String> found_renames;
	int current_line = 1;