DB<81> L
  DB<81> w if ($a>3 and $a <7){ $a }
  DB<82> c
0123Watchpoint 0:	if ($a>3 and $a <7){ $a } changed:
    old value:	''
    new value:	'4'
  DB<82> c
4Watchpoint 0:	if ($a>3 and $a <7){ $a } changed:
    old value:	'4'
    new value:	'5'
  DB<82> 

  DB<82> c
5Watchpoint 0:	if ($a>3 and $a <7){ $a } changed:
    old value:	'5'
    new value:	'6'
  DB<82> c
6Watchpoint 0:	if ($a>3 and $a <7){ $a } changed:
    old value:	'6'
    new value:	''
  DB<82> c
78910  DB<82>