Engine.Execute can throw many unexpected exceptions

[Metalnem]

Engine.Execute can throw many unexpected exceptions (JavaScriptException and ParserException are expected for malformed inputs) when executing scripts from the attached archive. These are:

• ArgumentOutOfRangeException
• IndexOutOfRangeException
• InvalidCastException
• InvalidOperationException
• NullReferenceException
• OverflowException

You can run the following code to reproduce it (the path variable should contain the path to one of the extracted files):

var text = File.ReadAllText(path);
new Engine().Execute(text);

Found via SharpFuzz.

[lahma]

Thank you for reporting these. We've created fixes for both Jint and Esprima .NET and they should now cover the cases you've reported, closing the issue.