Core/Misc: Fix static analysis issues

src/server/game/Groups/Group.cpp

@@ -1535,6 +1535,7 @@ void Group::CountTheRoll(Rolls::iterator rollI, Map* allowedMap)
                         roll->getLoot()->NotifyItemRemoved(roll->itemSlot);
                         roll->getLoot()->unlootedCount--;
                         ItemTemplate const* pProto = sObjectMgr->GetItemTemplate(roll->itemid);
+                        ASSERT(pProto);
                         player->UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_CAST_SPELL, 13262); // Disenchant
 
                         ItemPosCountVec dest;

src/server/game/Guilds/Guild.cpp

@@ -1973,6 +1973,7 @@ void Guild::HandleUpdateMemberRank(WorldSession* session, ObjectGuid guid, bool
         }
 
         Member const* memberMe = GetMember(player->GetGUID());
+        ASSERT(memberMe);
         uint8 rankId = memberMe->GetRankId();
         if (demote)
         {

src/server/game/Maps/Map.cpp

@@ -2528,8 +2528,10 @@ void Map::GetFullTerrainStatusForPosition(float x, float y, float z, PositionFul
     if (vmapData.areaInfo)
         data.areaInfo = boost::in_place(vmapData.areaInfo->adtId, vmapData.areaInfo->rootId, vmapData.areaInfo->groupId, vmapData.areaInfo->mogpFlags);
 
+    float mapHeight = VMAP_INVALID_HEIGHT;
     GridMap* gmap = const_cast<Map*>(this)->GetGrid(x, y);
-    float mapHeight = gmap->getHeight(x, y);
+    if (gmap)
+        mapHeight = gmap->getHeight(x, y);
 
     // area lookup
     AreaTableEntry const* areaEntry = nullptr;
@@ -2537,6 +2539,8 @@ void Map::GetFullTerrainStatusForPosition(float x, float y, float z, PositionFul
         if (WMOAreaTableEntry const* wmoEntry = GetWMOAreaTableEntryByTripple(vmapData.areaInfo->rootId, vmapData.areaInfo->adtId, vmapData.areaInfo->groupId))
             areaEntry = sAreaTableStore.LookupEntry(wmoEntry->areaId);
 
+    data.areaId = 0;
+
     if (areaEntry)
     {
         data.floorZ = vmapData.floorZ;