### 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
line = reg_container.keyword_gdscript_sync.sub(line, "@rpc(any_peer, call_cal) func", true);
			
			tains("slave")) {
				line = reg_container.keyword_gdscript_slave.sub(line, "@rpc func", true);
			
			tains("puppet")) {
				line = reg_container.keyword_gdscript_puppet.sub(line, "@rpc func", true);
			
			tains("puppet")) {
				line = reg_container.keyword_gdscript_puppetsync.sub(line, "@rpc(call_cal) func", true);
			
			tains("master")) {
				line = reg_container.keyword_gdscript_master.sub(line, error_message + "@rpc func", true);
			
			tains("master")) {
				line = reg_container.keyword_gdscript_mastersync.sub(line, error_message + "@rpc(call_cal) func", true);
			
		
	
Vector<String> rter3To4::check_for_rename_gdscript_keywords(Vector<String> &lines, const RegExContainer &reg_container) {
	Vector<String> found_renames;
	int current_line = 1;
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			String old;
			tains("tool")) {
				old = line;
				line = reg_container.keyword_gdscript_tool.sub(line, "@tool", true);
				if (old != line) {
					found_renames.append(line_formatter(current_line, "tool", "@tool", line));