Type global queueMicrotask

Summary:
Changelog: [Internal]

This diff
- add `queueMicrotask` to eslint and metro so it's globally available.
- add `queueMicrotask` to the global libdef of react native so the type
  is available to `global.queueMicrotask` (which is common) as well.

Reviewed By: yungsters

Differential Revision: D30158144

fbshipit-source-id: 00a62193b838745c91179ff1e983636200560690

flow/global.js

@@ -49,6 +49,10 @@ declare var global: {
   +requestIdleCallback: typeof requestIdleCallback,
   +cancelIdleCallback: typeof cancelIdleCallback,
   +setTimeout: typeof setTimeout,
+  // TODO(T97509743): use `typeof` when the next Flow release is available.
+  +queueMicrotask: <TArguments: Array<mixed>>(
+    jobCallback: (...args: TArguments) => mixed,
+  ) => void;
 
   +console: typeof console,
 

packages/eslint-config-react-native-community/index.js

@@ -114,6 +114,7 @@ module.exports = {
     setImmediate: true,
     setInterval: false,
     setTimeout: false,
+    queueMicrotask: true,
     URL: false,
     URLSearchParams: false,
     WebSocket: true,