### Godot version

v4.0.beta.custom_build [1d14c054a]

### System information

Kubuntu 22.10

### Issue description

Regression in master (in beta 10 the following script works correctly).

### Steps to reproduce

```gdscript
@tool
extends EditorScript

func wait(time: float) -> void:
    await get_editor_interface().get_tree().create_timer(time).timeout

func _run() -> void:
    reference()
    # Error: Cannot get return value of call to "wait()" because it returns "void".
    await wait(1.0)
    print("Test")
    unreference()
```

### Minimal reproduction project

N/A
if (!signal->doc_description.is_empty()) {
					p_script->doc_signals[name] = signal->doc_description;
				}
#endif
			} break;
			case GDScriptParser::ClassNode::Member::ENUM: {
				const GDScriptParser::EnumNode *enum_n = member.m_enum;
				StringName name = enum_n->identifier->name;
				p_script->constants.insert(name, enum_n->dictionary);
#ifdef TOOLS_ENABLED
				p_script->member_lines[name] = enum_n->start_line;
				p_script->doc_enums[name] = DocData::EnumDoc();
				p_script->doc_enums[name].name = name;
				p_script->doc_enums[name].description = enum_n->doc_description;
				for (int j = 0; j < enum_n->values.size(); j++) {
					DocData::ConstantDoc const_doc;
					const_doc.name = enum_n->values[j].identifier->name;
					const_doc.value = Variant(enum_n->values[j].value).operator String();
					const_doc.description = enum_n->values[j].doc_description;
					p_script->doc_enums[name].values.push_back(const_doc);
				}
#endif
			} break;
			case GDScriptParser::ClassNode::Member::GROUP: {
				const GDScriptParser::AnnotationNode *annotation = member.annotation;
				StringName name = annotation->export_info.name;
				
				GDScript::MemberInfo minfo;
				minfo.index = p_script->member_indices.size();
				PropertyInfo prop_info;