Fix some issues exposed when making function statics sealed

Reviewed By: SamChou19815

Differential Revision: D40736389

fbshipit-source-id: a3e1c3f5723081bf76e2dbdb637b4deb7a54e180

Author: gkz

Libraries/Image/resolveAssetSource.js

@@ -105,8 +105,6 @@ function resolveAssetSource(source: any): ?ResolvedAssetSource {
   return resolver.defaultAsset();
 }
 
+resolveAssetSource.pickScale = pickScale;
+resolveAssetSource.setCustomSourceTransformer = setCustomSourceTransformer;
 module.exports = resolveAssetSource;
-// $FlowFixMe[prop-missing]
-module.exports.pickScale = pickScale;
-// $FlowFixMe[prop-missing]
-module.exports.setCustomSourceTransformer = setCustomSourceTransformer;

Libraries/Utilities/differ/deepDiffer.js

@@ -97,6 +97,5 @@ const deepDiffer = function (
   return false;
 };
 
+deepDiffer.unstable_setLogListeners = unstable_setLogListeners;
 module.exports = deepDiffer;
-// $FlowFixMe[prop-missing]
-module.exports.unstable_setLogListeners = unstable_setLogListeners;