instanceof() testsuite #272

Description

instanceof() tests would be useful to ensure the proper parenting is defined, the initial proposal in my PR is actually quite poorly placed as it doesnt fit with the type checks, should probably consist in a different test suite.

This was another PR I made before realizing my mistake.
#267

Steps To The Task

• Ensure default struct of {} should return "Object"
• Ensure arbitrary data returns undefined
• Ensure constructed object from a global Constructor
• Ensure constructed object from an anon Constructor
• Ensure constructed object from a methoded global Constructor
• Ensure constructed object from a methoded anon Constructor
• Ensure constructed object from Child of the above four are accurate (child constructor would be the differing scope calls in this context)

Outcome

instanceof() should be checked specifically to prevent