### 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
RegExContainer() {
		// Common.
		{
			// Enum.
			igned int current_index = 0; enum_renames[current_index][0]; current_index++) {
				enum_regexes.push_back(memnew(RegEx(String("\\b") + enum_renames[current_index][0] + "\\b")));
			
			// GDScript functions.
			igned int current_index = 0; gdscript_function_renames[current_index][0]; current_index++) {
				gdscript_function_regexes.push_back(memnew(RegEx(String("\\b") + gdscript_function_renames[current_index][0] + "\\b")));
			
			// Project Settings.
			igned int current_index = 0; project_settings_renames[current_index][0]; current_index++) {
				project_settings_regexes.push_back(memnew(RegEx(String("\\b") + project_settings_renames[current_index][0] + "\\b")));
			
			// GDScript properties.
			igned int current_index = 0; gdscript_properties_renames[current_index][0]; current_index++) {
				gdscript_properties_regexes.push_back(memnew(RegEx(String("\\b") + gdscript_properties_renames[current_index][0] + "\\b")));
			
			// GDScript Signals.
			igned int current_index = 0; gdscript_signals_renames[current_index][0]; current_index++) {
				gdscript_signals_regexes.push_back(memnew(RegEx(String("\\b") + gdscript_signals_renames[current_index][0] + "\\b")));
			
			// Shaders.
			igned int current_index = 0; shaders_renames[current_index][0]; current_index++) {
				shaders_regexes.push_back(memnew(RegEx(String("\\b") + shaders_renames[current_index][0] + "\\b")));
			
			.
			igned int current_index = 0; builtin_types_renames[current_index][0]; current_index++) {
				builtin_types_regexes.push_back(memnew(RegEx(String("\\b") + builtin_types_renames[current_index][0] + "\\b")));