Call to function bcscale() on a separate line has no effect

> Call to function bcscale() on a separate line has no effect.

https://phpstan.org/r/40450e78-80f7-4170-a394-86b2c9578e21

which is false positive:

```php
<?php

echo bcsqrt(2);
echo PHP_EOL;
bcscale(15);
echo bcsqrt(2);
```

```
1
1.414213562373095
```