12385 tst.subr.d needs fixing for NULL as a pointer

*** 20,30 ****
   */
  
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
!  * Copyright (c) 2012, Joyent, Inc.  All rights reserved.
   */
  
  #include <sys/dtrace.h>
  
  #define INTFUNC(x)                      \
--- 20,30 ----
   */
  
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
!  * Copyright 2020 Joyent, Inc.
   */
  
  #include <sys/dtrace.h>
  
  #define INTFUNC(x)                      \
*** 59,70 ****
  INTFUNC(mutex_type_adaptive(&`cpu_lock))
  INTFUNC(mutex_type_spin(&`cpu_lock))
  INTFUNC(rw_read_held(&`vfssw_lock))
  INTFUNC(rw_write_held(&`vfssw_lock))
  INTFUNC(rw_iswriter(&`vfssw_lock))
! INTFUNC(copyin(NULL, 1))
! STRFUNC(copyinstr(NULL, 1))
  INTFUNC(speculation())
  INTFUNC(progenyof($pid))
  INTFUNC(strlen("fooey"))
  VOIDFUNC(copyout)
  VOIDFUNC(copyoutstr)
--- 59,70 ----
  INTFUNC(mutex_type_adaptive(&`cpu_lock))
  INTFUNC(mutex_type_spin(&`cpu_lock))
  INTFUNC(rw_read_held(&`vfssw_lock))
  INTFUNC(rw_write_held(&`vfssw_lock))
  INTFUNC(rw_iswriter(&`vfssw_lock))
! INTFUNC(copyin((uintptr_t)NULL, 1))
! STRFUNC(copyinstr((uintptr_t)NULL, 1))
  INTFUNC(speculation())
  INTFUNC(progenyof($pid))
  INTFUNC(strlen("fooey"))
  VOIDFUNC(copyout)
  VOIDFUNC(copyoutstr)