DSL EXPRESSION:
1 ** (2 *  3)


AST:
"block" [tt:block] [nt:StatementBlock]
    "**" [tt:op_pow] [nt:BareBoolean]
        "**" [tt:op_pow] [nt:Operator]
            "1" [tt:int_literal] [nt:int_literal]
            "*" [tt:op_star] [nt:Parenthesized]
                "*" [tt:op_star] [nt:Operator]
                    "2" [tt:int_literal] [nt:int_literal]
                    "3" [tt:int_literal] [nt:int_literal]

