Future-proof the code to classify static array members of structs. I made sure to create a merge conflict with the code attached to ticket #229 (which comments this code out due to changes in the DMD 'Type' type hierarchy) so that if it gets committed as-is there will be a human looking at it.

// this head contains stuff used by all the IR

#ifndef LDC_IR_IR_H
#define LDC_IR_IR_H

#include "ir/irforw.h"
#include "root.h"

struct IrBase : Object
{
    virtual ~IrBase() {}
};

#endif