Add temp var aliases

src/battle_pyramid.c

@@ -929,7 +929,7 @@ static void SetBattlePyramidData(void)
 static void SavePyramidChallenge(void)
 {
     gSaveBlock2Ptr->frontier.challengeStatus = gSpecialVar_0x8005;
-    VarSet(VAR_TEMP_0, 0);
+    VarSet(VAR_TEMP_CHALLENGE_STATUS, 0);
     gSaveBlock2Ptr->frontier.challengePaused = TRUE;
     SaveMapView();
     TrySavingData(SAVE_LINK);
@@ -1439,7 +1439,7 @@ void PausePyramidChallenge(void)
     {
         RestorePyramidPlayerParty();
         gSaveBlock2Ptr->frontier.challengeStatus = CHALLENGE_STATUS_PAUSED;
-        VarSet(VAR_TEMP_E, 0);
+        VarSet(VAR_TEMP_PLAYING_PYRAMID_MUSIC, 0);
         LoadPlayerParty();
     }
 }