[1.9>master] [1.8>1.9] [MERGE #4665 @atulkatti] OS:15856443 [RS4] Disabled failing core unit test toUint16.js DRT. Needs further investigation.
[1.9>master] [1.8>1.9] [MERGE #4665 @atulkatti] OS:15856443 [RS4] Disabled failing core unit test toUint16.js DRT. Needs further investigation.

Merge pull request #4665 from atulkatti:DRT.Fixes.1

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