iOS: supress yellow box about missing export for native modules

Summary: Simply changing RCTLogWarn() to RCTLogInfo(), since some modules can be loaded without explicit export (experimental).

Reviewed By: mdvacca

Differential Revision: D12899442

fbshipit-source-id: 524d345265eda4a601101d878d51c244a8441fb5

Author: fkgozali

React/Base/RCTBridge.m

@@ -130,7 +130,8 @@ void RCTVerifyAllModulesExported(NSArray *extraModules)
           break;
         }
 
-        RCTLogWarn(@"Class %@ was not exported. Did you forget to use RCT_EXPORT_MODULE()?", cls);
+        // Note: Some modules may be lazily loaded and not exported up front, so this message is no longer a warning.
+        RCTLogInfo(@"Class %@ was not exported. Did you forget to use RCT_EXPORT_MODULE()?", cls);
         break;
       }
       superclass = class_getSuperclass(superclass);