John Sundell d72e816cd8 Support ‘is’ keyword
This change makes Splash support the `is` keyword, for example in type
pattern matching in `switch` statements.
2019-03-08 22:04:10 +01:00
..
2019-03-08 22:04:10 +01:00
2018-08-24 18:42:07 +02:00