### 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
// CSharp function renames.
			igned int current_index = 0; csharp_function_renames[current_index][0]; current_index++) {
				csharp_function_regexes.push_back(memnew(RegEx(String("\\b") + csharp_function_renames[current_index][0] + "\\b")));
			
			// CSharp properties renames.
			igned int current_index = 0; csharp_properties_renames[current_index][0]; current_index++) {
				csharp_properties_regexes.push_back(memnew(RegEx(String("\\b") + csharp_properties_renames[current_index][0] + "\\b")));
			
			// CSharp signals renames.
			igned int current_index = 0; csharp_signals_renames[current_index][0]; current_index++) {
				csharp_signal_regexes.push_back(memnew(RegEx(String("\\b") + csharp_signals_renames[current_index][0] + "\\b")));
			
		
		s.
		{
			igned int current_index = 0; cor_renames[current_index][0]; current_index++) {
				cor_regexes.push_back(memnew(RegEx(String("\\bCor.") + cor_renames[current_index][0] + "\\b")));
				cor_renamed.push_back(String("Cor.") + cor_renames[current_index][1]);
			
		
		// Classes.
		{
			igned int current_index = 0; class_renames[current_index][0]; current_index++) {
				class_tscn_regexes.push_back(memnew(RegEx(String("\\b") + class_renames[current_index][0] + ".tscn\\b")));
				class_gd_regexes.push_back(memnew(RegEx(String("\\b") + class_renames[current_index][0] + ".gd\\b")));
				class_shader_regexes.push_back(memnew(RegEx(String("\\b") + class_renames[current_index][0] + ".shader\\b")));
				class_regexes.push_back(memnew(RegEx(String("\\b") + class_renames[current_index][0] + "\\b")));
				class_temp_tscn_renames.push_back(String(class_renames[current_index][0]) + ".tscn");
				class_temp_gd_renames.push_back(String(class_renames[current_index][0]) + ".gd");