Throw a different exception when no ViewManager is found

Summary: Adding a second exception with a different error message so we can tell how the ViewManagerRegistry was created when it fails to find a view manager.

Reviewed By: rickhanlonii, JoshuaGross

Differential Revision: D17759060

fbshipit-source-id: 4415fa7440395f7e5730d2b77088f16a1a6a819d

ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewManagerRegistry.java

@@ -52,7 +52,8 @@ public final class ViewManagerRegistry {
         mViewManagers.put(className, viewManager);
         return viewManager;
       }
+      throw new IllegalViewOperationException("ViewManagerResolver returned null for " + className);
     }
-    throw new IllegalViewOperationException("No ViewManager defined for class " + className);
+    throw new IllegalViewOperationException("No ViewManager found for class " + className);
   }
 }