### 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 = line_new + line.substr(end + start);
				
			
		
	
	// -- sort_custom( a , b )  ->  sort_custom(Callable( a , b ))            Object
	tains("sort_custom(")) {
		int start = line.find("sort_custom(");
		int end = get_end_parenthesis(line.substr(start)) + 1;
		if (end > -1) {
			Vector<String> parts = parse_arguments(line.substr(start, end));
			.size() == 2) {
				line = line.substr(0, start) + "sort_custom(Callable(" + parts[0] + "," + parts[1] + "))" + line.substr(end + start);
			
		
	
	// -- list_dir_begin( )  ->  list_dir_begin()            Object
	tains("list_dir_begin(")) {
		int start = line.find("list_dir_begin(");
		int end = get_end_parenthesis(line.substr(start)) + 1;
		if (end > -1) {
			line = line.substr(0, start) + "list_dir_begin() " + line.substr(end + start) + "# TODOGODOT4 fill missing arguments https://github.com/godotengine/godot/pull/40547";
		
	
	// -- draw_line(1,2,3,4,5) -> draw_line(1,2,3,4)            CanvasItem
	tains("draw_line(")) {
		int start = line.find("draw_line(");
		int end = get_end_parenthesis(line.substr(start)) + 1;
		if (end > -1) {
			Vector<String> parts = parse_arguments(line.substr(start, end));