Adding necessary diagnostic ignore #pragma statements

AFNetworking/AFURLConnectionOperation.m

@@ -88,6 +88,12 @@ static inline NSString * AFKeyPathFromOperationState(AFOperationState state) {
             return @"isFinished";
         case AFOperationPausedState:
             return @"isPaused";
+        default: {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunreachable-code"
+            return @"state";
+#pragma clang diagnostic pop
+        }
     }
 }
 
@@ -115,7 +121,9 @@ static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperat
             return NO;
         case AFOperationPausedState:
             return toState == AFOperationReadyState;
-        default:
+        default: {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunreachable-code"
             switch (toState) {
                 case AFOperationPausedState:
                 case AFOperationReadyState:
@@ -125,6 +133,8 @@ static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperat
                 default:
                     return NO;
             }
+        }
+#pragma clang diagnostic pop
     }
 }
 
@@ -182,7 +192,9 @@ static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperat
     if (!self) {
 		return nil;
     }
-    
+
+    _state = AFOperationReadyState;
+
     self.lock = [[NSRecursiveLock alloc] init];
     self.lock.name = kAFNetworkingLockName;
     
@@ -192,8 +204,6 @@ static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperat
     
     self.shouldUseCredentialStorage = YES;
 
-    _state = AFOperationReadyState;
-
     self.securityPolicy = [AFSecurityPolicy defaultPolicy];
 
     return self;