Add PHPUnit MockObject type hints to satisfy static analysis

fixmocks.php

<?php

$file = $argv[1];

$code = file_get_contents($file);

preg_match_all('/\$this->(.*)\s+=\s+\$this->createMock\((.*)::class\);/', $code, $matches);

foreach ($matches[2] as $key => $className) {
    $propertyName = trim($matches[1][$key]);

    $propertyCodeFind = sprintf('    private %s $%s;', $className, $propertyName);

    $propertyCodeDocBlock = sprintf('/** @var %s&MockObject */', $className);
    $propertyCodeReplace = sprintf("    %s\n%s", $propertyCodeDocBlock, $propertyCodeFind);

    $code = str_replace($propertyCodeFind, $propertyCodeReplace, $code);
}

preg_match_all('/namespace (.*)\;/', $code, $matches2);

$code = str_replace($matches2[0][0], $matches2[0][0]."\nuse PHPUnit\Framework\MockObject\MockObject;", $code);

file_put_contents($file, $code);

echo passthru(sprintf('phpcbf %s', $file));

echo passthru(sprintf('psalm %s', $file));