### 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
GDScriptDataType cast_type = _gdtype_from_datatype(og_cast_type, codegen.script);
			GDScriptCodeGenerator::Address result;
			if (cast_type.has_type) {
				if (og_cast_type.kind == GDScriptParser::DataType::ENUM) {
					
					cast_type.kind = GDScriptDataType::BUILTIN;
					cast_type.builtin_type = Variant::INT;
				}
				
				result = codegen.add_temporary(cast_type);
				GDScriptCodeGenerator::Address src = _parse_expression(codegen, r_error, cn->operand);
				gen->write_cast(result, src, cast_type);
				if (src.mode == GDScriptCodeGenerator::Address::TEMPORARY) {
					gen->pop_temporary();
				}
			} else {
				result = _parse_expression(codegen, r_error, cn->operand);
			}
			return result;
		} break;
		case GDScriptParser::Node::CALL: {
			const GDScriptParser::CallNode *call = static_cast<const GDScriptParser::CallNode *>(p_expression);
			GDScriptDataType type = _gdtype_from_datatype(call->get_datatype(), codegen.script);
			GDScriptCodeGenerator::Address result = codegen.add_temporary(type);
			GDScriptCodeGenerator::Address nil = GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::NIL);
			GDScriptCodeGenerator::Address return_addr = p_root ? nil : result;
			Vector<GDScriptCodeGenerator::Address> arguments;
			for (int i = 0; i < call->arguments.size(); i++) {
				GDScriptCodeGenerator::Address arg = _parse_expression(codegen, r_error, call->arguments[i]);
				if (r_error) {