[Performance] Use exactly equal or append / file path check on RealpathMatcher

[samsonasik]

Remove unnecessary IO for is_file() and is_dir(), as realpath() already validated before,

rector-src/src/Skipper/RealpathMatcher.php

Lines 13 to 21 in 4f54239

	$realPathMatchingPath = realpath($matchingPath);
	if ($realPathMatchingPath === false) {
	return false;
	}
	$realpathFilePath = realpath($filePath);
	if ($realpathFilePath === false) {
	return false;
	}

so just compare string equal or append with / suffix to file path.

[samsonasik]

All checks have passed 🎉 @TomasVotruba I am merging it ;)