Remove reportUse parameter on GameObjectAI::GossipHello and give it its own event.

Ported from 3.3.5

src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp

@@ -385,7 +385,7 @@ class go_prince_taldaram_sphere : public GameObjectScript
         {
             go_prince_taldaram_sphereAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+            bool GossipHello(Player* /*player*/) override
             {
                 InstanceScript* instance = me->GetInstanceScript();
                 if (!instance)

src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp

@@ -1364,7 +1364,7 @@ class go_twilight_portal : public GameObjectScript
                 }
             }
 
-            bool GossipHello(Player* player, bool /*reportUse*/) override
+            bool GossipHello(Player* player) override
             {
                 if (_spellId != 0)
                     player->CastSpell(player, _spellId, true);

src/server/scripts/Northrend/Gundrak/instance_gundrak.cpp

@@ -355,7 +355,7 @@ class go_gundrak_altar : public GameObjectScript
         {
             go_gundrak_altarAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+            bool GossipHello(Player* /*player*/) override
             {
                 me->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
                 me->SetGoState(GO_STATE_ACTIVE);

src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp

@@ -229,7 +229,7 @@ public:
     {
         containment_sphereAI(GameObject* go) : GameObjectAI(go) { }
 
-        bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+        bool GossipHello(Player* /*player*/) override
         {
             InstanceScript* instance = me->GetInstanceScript();
 

src/server/scripts/Northrend/Ulduar/Ulduar/boss_algalon_the_observer.cpp

@@ -979,7 +979,7 @@ class go_celestial_planetarium_access : public GameObjectScript
             {
             }
 
-            bool GossipHello(Player* player, bool /*reportUse*/) override
+            bool GossipHello(Player* player) override
             {
                 if (me->HasFlag(GAMEOBJECT_FLAGS, GO_FLAG_IN_USE))
                     return true;

src/server/scripts/Northrend/Ulduar/Ulduar/boss_mimiron.cpp

@@ -1650,7 +1650,7 @@ class go_mimiron_hardmode_button : public GameObjectScript
         {
             go_mimiron_hardmode_buttonAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+            bool GossipHello(Player* /*player*/) override
             {
                 if (me->HasFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE))
                     return true;

src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp

@@ -321,7 +321,7 @@ class go_razorscale_harpoon : public GameObjectScript
         {
             go_razorscale_harpoonAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+            bool GossipHello(Player* /*player*/) override
             {
                 if (InstanceScript* instance = me->GetInstanceScript())
                     if (instance->GetCreature(BOSS_RAZORSCALE))

src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_palehoof.cpp

@@ -560,7 +560,7 @@ public:
     {
         go_palehoof_sphereAI(GameObject* go) : GameObjectAI(go) { }
 
-        bool GossipHello(Player* /*player*/, bool /*reportUse*/) override
+        bool GossipHello(Player* /*player*/) override
         {
             if (InstanceScript* instance = me->GetInstanceScript())
             {

src/server/scripts/Northrend/VioletHold/violet_hold.cpp

@@ -1315,7 +1315,7 @@ class go_activation_crystal : public GameObjectScript
         {
             go_blackfathom_altarAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* player, bool /*reportUse*/) override
+            bool GossipHello(Player* player) override
             {
                 player->CastSpell(player, SPELL_CRYSTAL_ACTIVATION, true);
                 return false;

src/server/scripts/Northrend/zone_zuldrak.cpp

@@ -309,7 +309,7 @@ class go_scourge_enclosure : public GameObjectScript
         {
             go_scourge_enclosureAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* player, bool /*reportUse*/) override
+            bool GossipHello(Player* player) override
             {
                 me->UseDoorOrButton();
                 if (player->GetQuestStatus(QUEST_OUR_ONLY_HOPE) == QUEST_STATUS_INCOMPLETE)
@@ -595,7 +595,7 @@ class go_finklesteins_cauldron : public GameObjectScript
         {
             go_finklesteins_cauldronAI(GameObject* go) : GameObjectAI(go) { }
 
-            bool GossipHello(Player* player, bool /*reportUse*/) override
+            bool GossipHello(Player* player) override
             {
                 player->CastSpell(player, SPELL_POT_CHECK);
                 return true;