Fix a bug where ::warning() was called with a va_list argument instead of an actual vararg list. Also cleaned up the format for warnings. (Previously some would start with "warning - warning - Warning:" which was a bit redundant)

// 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