- Versioned Expresssion::toElem with #if IN_DMD/IN_LLVM. - Eliminated the DLRValue DValue. - Implemented proactive handling of l-value CastExpS. - Minor tweak in runtime memory.d .

module union3;

union vec3
{
    struct { float x,y,z; }
    float[3] xyz;
}

void main()
{
    vec3 v;
    assert(&v.y is &v.xyz[1]);
}