[MERGE #3369 @atulkatti] OS#12724597 Symbol registraion map should use the key from the property record's buffer.
[MERGE #3369 @atulkatti] OS#12724597 Symbol registraion map should use the key from the property record's buffer.

Merge pull request #3369 from atulkatti:Issue2471.SymbolFor.2

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