PROPOSAL: Underscores in numbers

[Bruce Chapman]

I am just doing some work (in kijaro) building prototype compiler for my 
integer literal proposals, and this proposal, and during testing found a 
wee bug in this spec.


> long alsoMaxLong = 9_223_372_036_854_775_808L;
that particular literal is only valid as the right hand side of a unary 
minus. The last digit should be changed to a '7'.

Will post a link to the prototype in the next few days now that I have 
everything working. I still need to create something that is relatively 
easy to download and deploy.

Bruce