### 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
changed_elements.append_array(check_for_rename_cors(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(gdscript_function_renames, reg_container.gdscript_function_regexes, lines));
				changed_elements.append_array(check_for_rename_gdscript_functions(lines, reg_container, false));
				changed_elements.append_array(check_for_rename_common(project_settings_renames, reg_container.project_settings_regexes, lines));
				changed_elements.append_array(check_for_rename_gdscript_keywords(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(gdscript_properties_renames, reg_container.gdscript_properties_regexes, lines));
				changed_elements.append_array(check_for_rename_common(gdscript_signals_renames, reg_container.gdscript_signals_regexes, lines));
				changed_elements.append_array(check_for_rename_common(shaders_renames, reg_container.shaders_regexes, lines));
				changed_elements.append_array(check_for_rename_common(builtin_types_renames, reg_container.builtin_types_regexes, lines));
				changed_elements.append_array(check_for_custom_rename(lines, "\\.shader", ".gdshader"));
			 else if (file_name.ends_with(".tscn")) {
				changed_elements.append_array(check_for_rename_classes(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(enum_renames, reg_container.enum_regexes, lines));
				changed_elements.append_array(check_for_rename_cors(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(gdscript_function_renames, reg_container.gdscript_function_regexes, lines));
				changed_elements.append_array(check_for_rename_gdscript_functions(lines, reg_container, true));
				changed_elements.append_array(check_for_rename_common(project_settings_renames, reg_container.project_settings_regexes, lines));
				changed_elements.append_array(check_for_rename_gdscript_keywords(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(gdscript_properties_renames, reg_container.gdscript_properties_regexes, lines));
				changed_elements.append_array(check_for_rename_common(gdscript_signals_renames, reg_container.gdscript_signals_regexes, lines));
				changed_elements.append_array(check_for_rename_common(shaders_renames, reg_container.shaders_regexes, lines));
				changed_elements.append_array(check_for_rename_common(builtin_types_renames, reg_container.builtin_types_regexes, lines));
				changed_elements.append_array(check_for_custom_rename(lines, "\\.shader", ".gdshader"));
			 else if (file_name.ends_with(".cs")) {
				changed_elements.append_array(check_for_rename_classes(lines, reg_container));
				changed_elements.append_array(check_for_rename_common(csharp_function_renames, reg_container.csharp_function_regexes, lines));
				changed_elements.append_array(check_for_rename_common(builtin_types_renames, reg_container.builtin_types_regexes, lines));
				changed_elements.append_array(check_for_rename_common(csharp_properties_renames, reg_container.csharp_properties_regexes, lines));
				changed_elements.append_array(check_for_rename_common(csharp_signals_renames, reg_container.csharp_signal_regexes, lines));
				changed_elements.append_array(check_for_rename_csharp_functions(lines, reg_container));