partly fix issue #1336 - pets vs floating eyes

Issue reported by ars3niy:  pets with reflection or ranged attacks
would only attack floating eyes when rolling the 10% random chance
that other pets have even though they could have always safely
attacked.

This fixes the situation for melee attacks by pets who have
reflection.

dog_move() is too complicated for my feeble brain to cope with the
ranged attack aspect.  Pets still won't use ranged attacks against
floating eyes.

With the fix for reflection, I discovered that silver dragons
would be subjected to floating eyes' passive paralysis even when
their breath attack was suppressed.  (It wouldn't impact them, due
to reflection, but the message about the floating eye being hit by
its reflected gaze was being delivered without being preceded by
any message since no attack had taken place yet.)  This fixes that.

\#1336 is still open

doc/fixes3-7-0.txt

@@ -1484,9 +1484,8 @@ when hero who is poly'd into metallivore form eats a tin, bypass "smells like
 digging in ice was handled inconsistently, particularly if done at the span
 	spot in front of closed drawbridge
 angry god may remove an intrinsic
-blessed scroll of destroy armor asks which armor to destroy
-archeologists' fedora is lucky
 gelatinous cubes eat organic objects inside them
+pets with reflection were unwilling to attack floating eyes
 
 
 Fixes to 3.7.0-x General Problems Exposed Via git Repository
@@ -2734,6 +2733,8 @@ enlightenment/attribute disclosure for saving-grace: include a line for have
 tourists gain experience by seeing new types of creatures up close, and
 	going to new dungeon levels
 healers gain experience by healing pets
+blessed scroll of destroy armor asks which armor to destroy
+archeologists' fedora is lucky
 
 
 Platform- and/or Interface-Specific New Features