AI/PlayerAI: Code style cleanup.

(cherry picked from commit e3aa19281f4d1e2437a5654715f75ae919bd4027)

Build fix for horrendous, outdated, non-standards-compliant compilers. Such as the one in VS 2013. I hate VS 2013.

Closes #17260.
(cherry picked from commit 321d35417d39bd2531c63c63cd432cf86d84453f)

2 files changed, 14 insertions, 4 deletions

diff --git a/src/server/game/AI/PlayerAI/PlayerAI.cpp b/src/server/game/AI/PlayerAI/PlayerAI.cpp
index 2f84ad32f2c..a143dd6056a 100644
--- a/src/server/game/AI/PlayerAI/PlayerAI.cpp
+++ b/src/server/game/AI/PlayerAI/PlayerAI.cpp
@@ -451,13 +451,22 @@ PlayerAI::TargetedSpell PlayerAI::VerifySpellCast(uint32 spellId, Unit* target)
     // Find highest spell rank that we know
     uint32 knownRank, nextRank;
     if (me->HasSpell(spellId))
+    {
         // this will save us some lookups if the player has the highest rank (expected case)
-        nextRank = sSpellMgr->GetNextSpellInChain(knownRank = spellId);
+        knownRank = spellId;
+        nextRank = sSpellMgr->GetNextSpellInChain(spellId);
+    }
     else
-        knownRank = 0, nextRank = sSpellMgr->GetFirstSpellInChain(spellId);
+    {
+        knownRank = 0;
+        nextRank = sSpellMgr->GetFirstSpellInChain(spellId);
+    }
 
     while (nextRank && me->HasSpell(nextRank))
-        nextRank = sSpellMgr->GetNextSpellInChain(knownRank = nextRank);
+    {
+        knownRank = nextRank;
+        nextRank = sSpellMgr->GetNextSpellInChain(knownRank);
+    }
 
     if (!knownRank)
         return {};
diff --git a/src/server/game/AI/PlayerAI/PlayerAI.h b/src/server/game/AI/PlayerAI/PlayerAI.h
index 2d7adc6c551..b06f81f76c9 100644
--- a/src/server/game/AI/PlayerAI/PlayerAI.h
+++ b/src/server/game/AI/PlayerAI/PlayerAI.h
@@ -40,7 +40,8 @@ class TC_GAME_API PlayerAI : public UnitAI
     protected:
         struct TargetedSpell : public std::pair<Spell*, Unit*>
         {
-            using std::pair<Spell*, Unit*>::pair;
+            TargetedSpell() : pair<Spell*, Unit*>() { }
+            TargetedSpell(Spell* first, Unit* second) : pair<Spell*, Unit*>(first, second) { }
             explicit operator bool() { return !!first; }
         };
         typedef std::pair<TargetedSpell, uint32> PossibleSpell;