Implement no-icon directive,

telling the cross-reference generator not to look for an attack icon.

data/campaigns/Heir_To_The_Throne/units/Dark_Queen.cfg

@@ -118,7 +118,7 @@
         unit_description= _ "The evil queen mother Asheviere has terrorized Wesnoth for many years. Her knowledge of magic makes her a worthy foe in combat, although her power is mostly derived from those she commands."
         die_sound={SOUND_LIST:HUMAN_FEMALE_DIE}
         [attack]
-            name=dummy
+            name=dummy	# wmllint: no-icon
             description= _"dummy"
             type=impact
             range=melee

data/campaigns/Heir_To_The_Throne/units/Elvish_Lady.cfg

@@ -18,7 +18,7 @@
     usage=null
     unit_description= _ "Elves choose their leaders for their power and wisdom; foresight is what has protected them in times of uncertainty. Their just reign is rewarded by the unflagging fealty of their people, which is the greatest gift any ruler could ask for."
     [attack]
-        name=dummy
+        name=dummy	# wmllint: no-icon
         description= _"dummy"
         type=impact
         range=melee

data/campaigns/The_South_Guard/units/Invisible.cfg

@@ -12,7 +12,7 @@
     usage=null
     hide_help=true
     [attack]
-        name=dummy
+        name=dummy	# wmllint: no-icon
         description= _"dummy"
         type=impact
         range=melee

data/tools/wesnoth/wmltools.py

@@ -214,8 +214,12 @@ class CrossRef:
                         formals = line.split()[2:]
                     elif line.startswith("#enddef"):
                         formals = []
+                    comment = ""
                     if '#' in line:
-                        line = line.split('#')[0]
+                        fields = line.split('#')
+                        line = fields[0]
+                        if len(fields) > 1:
+                            comment = fields[1]
                     if not line:
                         continue
                     # Find references to macros
@@ -262,13 +266,14 @@ class CrossRef:
                             if len(candidates) > 1:
                                 print "%s: more than one definition of %s is visible here (%s)." % (Reference(fn, n), name, ", ".join(candidates))
                         if not key:
-                            self.missing.append((name, Reference(fn,n+1))) # Notice implicit references through attacks
+                            self.missing.append((name, Reference(fn,n+1)))
+                    # Notice implicit references through attacks
                     if state == "outside":
                         if "[attack]" in line:
                             beneath = 0
                             attack_name = default_icon = None
                             have_icon = False
-                        elif "name=" in line:
+                        elif "name=" in line and not "no-icon" in comment:
                             attack_name = line[line.find("name=")+5:].strip()
                             default_icon = os.path.join("attacks", attack_name  + ".png")
                         elif "icon=" in line and beneath == 0: