DSL EXPRESSION:
1 ? 2 ? 3 : 4 : 5


AST:
"block" [tt:block] [nt:StatementBlock]
    "?" [tt:op_ternary] [nt:BareBoolean]
        "?" [tt:op_ternary] [nt:Operator]
            "1" [tt:int_literal] [nt:int_literal]
            "?" [tt:op_ternary] [nt:Operator]
                "2" [tt:int_literal] [nt:int_literal]
                "3" [tt:int_literal] [nt:int_literal]
                "4" [tt:int_literal] [nt:int_literal]
            "5" [tt:int_literal] [nt:int_literal]

