DSL EXPRESSION:
!!1


AST:
"block" [tt:block] [nt:StatementBlock]
    "!" [tt:op_bang] [nt:BareBoolean]
        "!" [tt:op_bang] [nt:Operator]
            "!" [tt:op_bang] [nt:Operator]
                "1" [tt:int_literal] [nt:int_literal]

