Method isIntRepresentable

Fleece/Core/Encoder.cc:301–303

#if 0
    bool Encoder::isIntRepresentable(float n) noexcept {
        return (n <= INT32_MAX && n >= INT32_MIN && n == floorf(n));
    }

    bool Encoder::isIntRepresentable(double n) noexcept {
        return (n <= INT64_MAX && n >= INT64_MIN && n == floor(n));