PhpCsFixer\Fixer\ClassNotation\MethodSeparationFixer::findCommentBlockStart PHP Method

    private function findCommentBlockStart(Tokens $tokens, $commentIndex)
    {
        $start = $commentIndex;
        for ($i = $commentIndex - 1; $i > 0; --$i) {
            if ($tokens[$i]->isComment()) {
                $start = $i;
                continue;
            }
            if (!$tokens[$i]->isWhitespace() || $this->getLineBreakCount($tokens, $i, $i + 1) > 1) {
                break;
            }
        }
        return $start;
    }