[1.2>master] [MERGE #851] Disable an invalid assert in the array check hoisting code (and correct and clarify the assert in case we decide to try and re-enable it at some point).
[1.2>master] [MERGE #851] Disable an invalid assert in the array check hoisting code (and correct and clarify the assert in case we decide to try and re-enable it at some point).

Merge pull request #851 from pleath:7207153

Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore