Escaped Mutant for Mutator "PHPStan\Infection\TrinaryLogicMutator": @@ @@ : null; if ( $nativeParameterType === null - || !$nativeParameterType->isString()->yes() + || $nativeParameterType->isString()->no() || ExprUsedAsStringVisitor::isAlreadyUsedAsStringSite($param->default) ) { return;