new-merge fixes

Summary:
Some final fixes to enable Flow [new-merge](https://fb.workplace.com/groups/floweng/permalink/7366473803401171/) mode.

Changelog: [internal]

Reviewed By: samwgoldman

Differential Revision: D33110844

fbshipit-source-id: 96755262af44e48269cd64473412ed0b6dd9cfcf

Libraries/Image/Image.android.js

@@ -106,7 +106,7 @@ async function queryCache(
   return await NativeImageLoaderAndroid.queryCache(urls);
 }
 
-type ImageComponentStatics = $ReadOnly<{|
+export type ImageComponentStatics = $ReadOnly<{|
   getSize: typeof getSize,
   getSizeWithHeaders: typeof getSizeWithHeaders,
   prefetch: typeof prefetch,

Libraries/Image/Image.ios.js

@@ -86,7 +86,7 @@ async function queryCache(
   return await NativeImageLoaderIOS.queryCache(urls);
 }
 
-type ImageComponentStatics = $ReadOnly<{|
+export type ImageComponentStatics = $ReadOnly<{|
   getSize: typeof getSize,
   getSizeWithHeaders: typeof getSizeWithHeaders,
   prefetch: typeof prefetch,