Add Settings path to build-types script and align Flow with TS types (#49175)

Summary:
Pull Request resolved: #49175

Changelog:
[Internal]

Reviewed By: huntie

Differential Revision: D69121991

fbshipit-source-id: 022d56e823aae884ce10fd24cc9701b02db19e9f

Author: coado

packages/react-native/Libraries/Settings/Settings.js

@@ -11,7 +11,7 @@
 'use strict';
 
 const Settings = {
-  get(key: string): mixed {
+  get(key: string): any {
     console.warn('Settings is not yet supported on this platform.');
     return null;
   },
@@ -20,7 +20,7 @@ const Settings = {
     console.warn('Settings is not yet supported on this platform.');
   },
 
-  watchKeys(keys: string | Array<string>, callback: Function): number {
+  watchKeys(keys: string | Array<string>, callback: () => void): number {
     console.warn('Settings is not yet supported on this platform.');
     return -1;
   },

packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap

@@ -6975,9 +6975,9 @@ declare export default typeof NativeSettingsManager;
 
 exports[`public API should not change unintentionally Libraries/Settings/Settings.js 1`] = `
 "declare const Settings: {
-  get(key: string): mixed,
+  get(key: string): any,
   set(settings: Object): void,
-  watchKeys(keys: string | Array<string>, callback: Function): number,
+  watchKeys(keys: string | Array<string>, callback: () => void): number,
   clearWatch(watchId: number): void,
 };
 declare export default typeof Settings;

scripts/build/build-types.js

@@ -31,9 +31,11 @@ const SOURCE_PATTERNS = [
   'react-native/Libraries/Types/RootTagTypes.js',
   'react-native/Libraries/ReactNative/RootTag.js',
   'react-native/Libraries/Utilities/Platform.js',
+  'react-native/Libraries/Settings/**/*.js',
   'react-native/src/private/specs_DEPRECATED/modules/NativeAlertManager.js',
   'react-native/src/private/specs_DEPRECATED/modules/NativeActionSheetManager.js',
   'react-native/src/private/specs/modules/NativeToastAndroid.js',
+  'react-native/src/private/specs_DEPRECATED/modules/NativeSettingsManager.js',
   // TODO(T210505412): Include input packages, e.g. virtualized-lists
 ];