For this benchmark:
```php
<?php

for ($i = 0; $i < 10000000; $i++) {
    intval('+0b11111111111100000000', 2);
}
```

On an i7-4790:
```
Benchmark 1: ./sapi/cli/php x.php
  Time (mean ± σ):     527.3 ms ±   8.1 ms    [User: 523.5 ms, System: 2.4 ms]
  Range (min … max):   515.4 ms … 545.1 ms    10 runs

Benchmark 2: ./sapi/cli/php_old x.php
  Time (mean ± σ):     629.3 ms ±   6.0 ms    [User: 625.9 ms, System: 1.8 ms]
  Range (min … max):   622.8 ms … 643.2 ms    10 runs

Summary
  ./sapi/cli/php x.php ran
    1.19 ± 0.02 times faster than ./sapi/cli/php_old x.php
```

Closes GH-20357.