[svn r76] Fixed: TypeInfo for structs. Fixed: PostExp was unable to allocate storage for parameters. Fixed: Many types of functions and delegates were broken. Misc cleanups.

module c;

void main()
{
    ushort a = 0xFFF0;
    ushort b = 0x0FFF;
    auto t = a & b;
    a &= b;
    assert(t == a);
}