Convert reactBatchedUpdates to TypeScript (#1746)

src/global.d.ts

@@ -0,0 +1,25 @@
+declare module 'react-dom' {
+  export function unstable_batchedUpdates<A, B>(
+    callback: (a: A, b: B) => any,
+    a: A,
+    b: B
+  ): void
+  export function unstable_batchedUpdates<A>(
+    callback: (a: A) => any,
+    a: A
+  ): void
+  export function unstable_batchedUpdates(callback: () => any): void
+}
+
+declare module 'react-native' {
+  export function unstable_batchedUpdates<A, B>(
+    callback: (a: A, b: B) => any,
+    a: A,
+    b: B
+  ): void
+  export function unstable_batchedUpdates<A>(
+    callback: (a: A) => any,
+    a: A
+  ): void
+  export function unstable_batchedUpdates(callback: () => any): void
+}

src/utils/reactBatchedUpdates.js → src/utils/reactBatchedUpdates.ts

@@ -1,2 +1 @@
-/* eslint-disable import/no-unresolved */
 export { unstable_batchedUpdates } from 'react-dom'