Fix flow types

Author: rickhanlonii

packages/react-art/src/ReactARTHostConfig.js

@@ -330,7 +330,7 @@ export function getChildHostContext() {
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
 export const noTimeout = -1;
-export function queueMicrotask() {
+export function queueMicrotask(callback: Function) {
   invariant(false, 'Not implemented.');
 }
 

packages/react-dom/src/client/ReactDOMHostConfig.js

@@ -384,9 +384,9 @@ export const scheduleTimeout: any =
 export const cancelTimeout: any =
   typeof clearTimeout === 'function' ? clearTimeout : (undefined: any);
 export const noTimeout = -1;
-export const queueMicrotask: (Function => void) | undefined =
-  typeof queueMicrotask === 'function'
-    ? queueMicrotask
+export const queueMicrotask: any =
+  typeof global.queueMicrotask === 'function'
+    ? global.queueMicrotask
     : typeof Promise !== 'undefined'
     ? callback =>
         Promise.resolve(null)

packages/react-native-renderer/src/ReactFabricHostConfig.js

@@ -348,7 +348,7 @@ export const warnsIfNotActing = false;
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
 export const noTimeout = -1;
-export function queueMicrotask() {
+export function queueMicrotask(callback: Function) {
   invariant(false, 'Not implemented.');
 }
 

packages/react-native-renderer/src/ReactNativeHostConfig.js

@@ -247,7 +247,7 @@ export const warnsIfNotActing = true;
 export const scheduleTimeout = setTimeout;
 export const cancelTimeout = clearTimeout;
 export const noTimeout = -1;
-export function queueMicrotask() {
+export function queueMicrotask(callback: Function) {
   invariant(false, 'Not implemented.');
 }