disable all member function calls for rvalues?

[dsimcha]

== Quote from Andrei Alexandrescu (SeeWebsiteForEmail at erdani.org)'s article
> There is a wart in D I'd like to eliminate. Unfortunately, that would
> also eliminate some valid uses.

I'll say.  One more example that I forgot to include, but I think is pretty important:

struct CheckedInt {
    int num;

    /// Rest of implementation.

    bool opEquals(CheckedInt rhs) const {
        return num == rhs.num;
    }
}

CheckedInt fun() {
    return CheckedInt(5);
}

assert(fun() == CheckedInt(5));  // Wouldn't compile.

Requiring an explicit temp variable here is so utterly ridiculous that, if D
required one, it would rightfully be made the laughing stock among programming
languages.