Float comparison in 4.0.8

[donatj]

In 4.0.7 and prior checking the equality of 1/3 vs 1 - 2/3 came out as true, upgrading to 4.0.8 however it now declares

SebastianBergmann\Comparator\ComparisonFailure : Failed asserting that 0.33333333333333337 matches expected 0.3333333333333333

$comparatorFactory = ComparatorFactory::getInstance();
$comparator = $comparatorFactory->getComparatorFor(1/3, 1 - (2/3));

$comparator->assertEquals(1/3, 1 - (2/3));

I could see this being an intentional change as it's arguably "more correct" but seems like a pretty major change for a 3rd point release.

[sebastianbergmann]

This was discussed in sebastianbergmann/phpunit#4967, #99, and #102.