[MERGE #5919 @pleath] Handle non-null-terminated function name in ETW
[MERGE #5919 @pleath] Handle non-null-terminated function name in ETW

Merge pull request #5919 from pleath:etwfuncname

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