d: Merge upstream dmd 568496d5b, druntime 178c44ff, phobos 574bf883b.

[official-gcc.git] / gcc / testsuite / gdc.test / compilable / test17059.d

mixin template impl()
{
    alias T = typeof(this);
    enum doImplement = is(T : I);

    static if (doImplement)
    {}
}

interface I {}
class A : I {mixin impl;}