[MERGE #3696 @agarwal-sandeep] OS#10614839 Relax an assert for verifying cached value against current property value
[MERGE #3696 @agarwal-sandeep] OS#10614839 Relax an assert for verifying cached value against current property value

Merge pull request #3696 from agarwal-sandeep:vso10614839fix

If disable implicit bit is set GetProperty returns a null value for external objects. Relax the assert to handle this.

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