The following code should raise a linter error, but currently does not:
```lang=php
<?php
class MyClass {
const SOME_CONSTANT = array(1, 2, 3);
}
```
Trying to execute this code produces a fatal error:
```
PHP Fatal error: Arrays are not allowed in class constants in /home/joshua/workspace/github.com/phacility/libphutil/test.php on line 4
```