Add some alignment info where LLVM might otherwise be more pessimistic. In particular, %.nest_arg is always aligned even though it's bitcast from i8*. Pointers in vtables are also guaranteed to be stored at aligned addresses.

// ireal

module typeinfo1.ti_ireal;

private import typeinfo1.ti_real;

class TypeInfo_j : TypeInfo_e
{
    char[] toString() { return "ireal"; }
}