### 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_rename_csharp_functions(Vector<String> &lines, const RegExContainer &reg_container) {
	int current_line = 1;
	Vector<String> found_renames;
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			String old_line = line;
			process_csharp_line(line, reg_container);
			if (old_line != line) {
				found_renames.append(simple_line_formatter(current_line, old_line, line));
			
		
	
	return found_renames;
void rter3To4::rename_csharp_attributes(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 Multiplayer.GetRemoteSenderId()\n";
	for (String &line : lines) {
		if (uint64_t(line.length()) <= maximum_line_length) {
			line = reg_container.keyword_csharp_remote.sub(line, "[RPC(MultiplayerAPI.RPCMode.AnyPeer)]", true);
			line = reg_container.keyword_csharp_remotesync.sub(line, "[RPC(MultiplayerAPI.RPCMode.AnyPeer, CallLocal = true)]", true);
			line = reg_container.keyword_csharp_puppet.sub(line, "[RPC]", true);
			line = reg_container.keyword_csharp_puppetsync.sub(line, "[RPC(CallLocal = true)]", true);
			line = reg_container.keyword_csharp_master.sub(line, error_message + "[RPC]", true);
			line = reg_container.keyword_csharp_mastersync.sub(line, error_message + "[RPC(CallLocal = true)]", true);
		
	
Vector<String> rter3To4::check_for_rename_csharp_attributes(Vector<String> &lines, const RegExContainer &reg_container) {
	int current_line = 1;
	Vector<String> found_renames;