[svn r372] Fixed extern(C++) handling now same as DMD, which is to treat it like extern(C). Fixed a problem in resolving struct types where the size of elements might not yet be known. Switched to using DMD size() instead of LLVM ABI size (TargetData).

char[] get()
{
    return "hello";
}

void param(char[] s)
{
}

void refparam(ref char[] s)
{
}

void main()
{
    char[] dstr = get();
    param(dstr);
    refparam(dstr);
}