[MERGE #1374 @pleath] Trivial save-scope-info assert fix
[MERGE #1374 @pleath] Trivial save-scope-info assert fix

Merge pull request #1374 from pleath:8085552

Let an assert in saving scope info handle the case where the global eval block scope exists but is empty.

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