Polyfill does not properly calculate value of binary int literals

[TysonAndre]

With --allow-polyfill-parser or --force-polyfill-parser or fallback

<?php
function test_bit(array $y) {
    $x = $y[0];
    // false positive PhanTypeInvalidBitwiseBinaryOperator Invalid non-int/non-string operand provided to operator '&' between types mixed and 0.0
    if ($x & 0b011111111111111111111111) {
    }
    invalid_token_causes_polyfill
}