Struct constructor, opCall mess.

[Remo]

>> Also please take a look at those:
>>
>> https://d.puremagic.com/issues/show_bug.cgi?id=7066
>>
>> There may be some others I've missed; the sheer amount and 
>> unresolved state is terrifying.

IMHO  Issue 7066 is not a bug but a feature.
Of course it could be handled i a bit more safe way.

This looks like D2 is still in Beta stadium and not really ready 
for production use !?