Fails when passing php-object to the function

Steps to reproduce:

1. Create function with non-object parameter, or with use of non-object parameter
2. Pass to the function Object type on the interpretator side:
   psv.RunCode(' <?php issue11( new stdClass() ); ?> ');

Expected behaviour:
Type mismatch interpreter exception

Actual behaviour:
Access Violation error

Proposed solution:

• Prevent php from attempting to convert Object to required argument type