add test case for Zend\Validator\IsInstanceOf for pass Traversable to __construct
add for isValid()
fix space and added invalid instance to be tested
Merge branch 'hotfix/5031'

Close #5031
Merge pull request #5053 from samsonasik/add/test.isinstanceof

add test case for Zend\Validator\IsInstanceOf to pass Traversable to constructor
Merge branch 'hotfix/5053' into develop

Forward port #5053