### Godot version

v4.0.beta13.official [caacade56]

### System information

Windows 8.1

### Issue description

The `Unreachable code (statement after return) in function 'function_name()'` warning is given for functions that do not have unreachable code. The same code does not give this warning in v3.5.stable.official [991bb6ac7].

### Steps to reproduce

```
func warning(i: int) -> void:
  if i == 0:
    pass
  elif i == 1:
    return
  else:
    return
  print("yeah")
```

Removing either the `elif` or the `else` removes the warning.

### Minimal reproduction project

N/A; code in reproduction steps can be placed in any blank gdscript file to trigger the error.
switch (p_type) {
		case Variant::PACKED_BYTE_ARRAY:
		case Variant::PACKED_INT32_ARRAY:
		case Variant::PACKED_INT64_ARRAY:
			return Variant::INT;
		case Variant::PACKED_FLOAT32_ARRAY:
		case Variant::PACKED_FLOAT64_ARRAY:
			return Variant::FLOAT;
		case Variant::PACKED_STRING_ARRAY:
			return Variant::STRING;
		case Variant::PACKED_VECTOR2_ARRAY:
			return Variant::VECTOR2;
		case Variant::PACKED_VECTOR3_ARRAY:
			return Variant::VECTOR3;
		case Variant::PACKED_COLOR_ARRAY:
			return Variant::COLOR;
		default:
			return Variant::NIL;
	}
}
bool GDScriptParser::DataType::is_typed_container_type() const {