New features:
- forbidCustomFunctions now detects even fist class callables, anonymous classes and array/string callables in arguments (#288)
- e.g.
new class extends DeniedParent {}
- e.g.
$this->deniedMethod(...)
- e.g.
array_map([$this, 'deniedMethod'], $a)
- e.g.
array_map('denied_function', $a)
- e.g.