### 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
if (old != line) {
				found_renames.append(line_formatter(current_line, "[MasterSync]", "[RPC(CallLocal = true)]", line));
			
		
		current_line++;
	
	return found_renames;
void rter3To4::rename_gdscript_keywords(Vector<String> &lines, const RegExContainer &reg_container) {
	static String error_message = "The master and mastersync rpc behavior is not officially supported anymore. Try using another keyword or making custom gic using get_multiplayer().get_remote_sender_id()\n";
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			tains("tool")) {
				line = reg_container.keyword_gdscript_tool.sub(line, "@tool", true);
			
			tains("export")) {
				line = reg_container.keyword_gdscript_export_single.sub(line, "@export", true);
			
			tains("export")) {
				line = reg_container.keyword_gdscript_export_mutli.sub(line, "$1@export", true);
			
			tains("onready")) {
				line = reg_container.keyword_gdscript_onready.sub(line, "@onready", true);
			
			tains("remote")) {
				line = reg_container.keyword_gdscript_remote.sub(line, "@rpc(any_peer) func", true);
			
			tains("remote")) {
				line = reg_container.keyword_gdscript_remotesync.sub(line, "@rpc(any_peer, call_cal) func", true);
			
			tains("sync")) {