Stops endless logging by packager client for debug builds that use st…

…atic bundles. (facebook#24050)

Summary:
For the use-case where iOSdebug builds prefer to use static bundles over bundles served dynamically by metro. There's currently a bug caused by the packager client repeatedly attempting to connect to metro. This leads to endless log statements in xcode as well as other side effects:
facebook#21030. Fix is based off of facebook#21030 which fixes the behavior for the inspector.

Stops endless logging by packager client for debug builds that use static bundles.

[CATEGORY] [TYPE] - Message
Pull Request resolved: facebook#24050

Differential Revision: D14541574

Pulled By: cpojer

fbshipit-source-id: 09c2c82eb2d4aeb0e7ba322fd81b0dd7bf9e683c

Libraries/WebSocket/RCTReconnectingWebSocket.m

@@ -163,7 +163,9 @@ - (void)webSocketDidOpen:(RCTSRWebSocket *)webSocket
 - (void)webSocket:(RCTSRWebSocket *)webSocket didFailWithError:(NSError *)error
 {
   [_delegate reconnectingWebSocketDidClose:self];
-  [self reconnect];
+  if ([error code] != ECONNREFUSED) {
+    [self reconnect];
+  }
 }
 
 - (void)webSocket:(RCTSRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean