CR: rename SignalClassic constant

// FREEBIE

SignalMessaging/environment/OWSSounds.h

@@ -20,7 +20,7 @@ typedef NS_ENUM(NSUInteger, OWSSound) {
     OWSSound_Popcorn,
     OWSSound_Pulse,
     OWSSound_Synth,
-    OWSSound_ClassicNotification,
+    OWSSound_SignalClassic,
 
     // Ringtone Sounds
     OWSSound_Opening,

SignalMessaging/environment/OWSSounds.m

@@ -74,7 +74,7 @@ NSString *const kOWSSoundsStorageGlobalNotificationKey = @"kOWSSoundsStorageGlob
         @(OWSSound_Keys),
         @(OWSSound_Popcorn),
         @(OWSSound_Pulse),
-        @(OWSSound_ClassicNotification),
+        @(OWSSound_SignalClassic),
         @(OWSSound_Synth),
     ];
 }
@@ -112,7 +112,7 @@ NSString *const kOWSSoundsStorageGlobalNotificationKey = @"kOWSSoundsStorageGlob
             return @"Pulse";
         case OWSSound_Synth:
             return @"Synth";
-        case OWSSound_ClassicNotification:
+        case OWSSound_SignalClassic:
             return @"Signal Classic";
 
         // Call Audio
@@ -172,7 +172,7 @@ NSString *const kOWSSoundsStorageGlobalNotificationKey = @"kOWSSoundsStorageGlob
             return (quiet ? @"pulse-quiet.aifc" : @"pulse.aifc");
         case OWSSound_Synth:
             return (quiet ? @"synth-quiet.aifc" : @"synth.aifc");
-        case OWSSound_ClassicNotification:
+        case OWSSound_SignalClassic:
             return (quiet ? @"classic-quiet.aifc" : @"classic.aifc");
 
             // Ringtone Sounds

SignalMessaging/environment/migrations/OWS107LegacySounds.m

@@ -22,7 +22,7 @@ static NSString *const OWS107LegacySoundsMigrationId = @"107";
 {
     OWSAssert(transaction);
 
-    [OWSSounds setGlobalNotificationSound:OWSSound_ClassicNotification transaction:transaction];
+    [OWSSounds setGlobalNotificationSound:OWSSound_SignalClassic transaction:transaction];
 }
 
 @end