[svn r111] Fixed most problems with complex number support and added typeinfo for them. Added typeinfo ti_C. Did some changes to the way expressions that have both lvalue and rvalue LLVM values are handled.

module typeinfo6;

void main()
{
    auto ti = typeid(int[]);
    assert(ti.toString() == "int[]");
    assert(ti.next() is typeid(int));
}