Fix some cppcheck warnings (mostly style and postfix vs prefix iteration)

projects/mtg/src/AIMomirPlayer.cpp

@@ -90,13 +90,13 @@ int AIMomirPlayer::computeActions()
     }
     else if (p == this && observer->mLayers->stackLayer()->count(0, NOT_RESOLVED) == 0)
     { //standard actions
-        CardDescriptor cd;
-        MTGCardInstance * card = NULL;
 
         switch (currentGamePhase)
         {
         case MTG_PHASE_FIRSTMAIN:
         {
+            CardDescriptor cd;
+            MTGCardInstance * card = NULL;
             ManaCost * potentialMana = getPotentialMana();
             int converted = potentialMana->getConvertedCost();
             SAFE_DELETE(potentialMana);
@@ -118,15 +118,12 @@ int AIMomirPlayer::computeActions()
             }
             momir();
             return 1;
-            break;
         }
         case MTG_PHASE_SECONDMAIN:
             selectAbility();
             return 1;
-            break;
         default:
             return AIPlayerBaka::computeActions();
-            break;
         }
     }
     return AIPlayerBaka::computeActions();