fix #33 : int64 parse error

[Al-Dyachkov]

Implemented #33 (comment)

[rivantsov]

looking at it..

[rivantsov]

Sorry but this is incorrect fix - if there's a bug at all.
I just tried your fix, and 3 unit tests for number literal failed. You can see it in this PR below, failing check - appveyor found 3 failed unit tests.
This is clear indication that this second conversion call is needed.
I also tried parsing large number you provide (without minus) and it parsed correctly into Int64.
I suspect something is wrong with your setup of NumberLiteral in your grammar. Try using TerminalFactory.CreateCSharpNumber method to create terminal (note: it is unsigned int, minus is added in grammar rules I guess)

[Al-Dyachkov]

Ok, additional setup seems to do the trick, thanks.

To clarify :

• I ran into this issue using sample sql grammar
• Found related open issue opened by other person
• Forked and Implemented suggested fix, because the dialogue ending suggested that it should be done.

Maybe error message should suggest setting up number literal, because if you just take the sample and run into issues it is kind of unclear on how to proceed ?