[standards] Rewrite imports in RNTester to use standard paths

See #24316 for the motivation. This commit rewrites the imports in the RNTester project.

Test Plan: Run RNTester and verify that it loads without any issues. Tap through each screen to ensure the JS modules load (that is, were bundled) correctly.

Author: ide

.flowconfig

@@ -63,6 +63,10 @@ module.system.haste.paths.whitelist=<PROJECT_ROOT>/IntegrationTests/.*
 module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/react-native/react-native-implementation.js
 module.system.haste.paths.blacklist=<PROJECT_ROOT>/Libraries/Animated/src/polyfills/.*
 
+module.file_ext=.js
+module.file_ext=.json
+module.file_ext=.ios.js
+
 munge_underscores=true
 
 module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub'

.flowconfig.android

@@ -44,6 +44,10 @@ emoji=true
 esproposal.optional_chaining=enable
 esproposal.nullish_coalescing=enable
 
+module.file_ext=.js
+module.file_ext=.json
+module.file_ext=.android.js
+
 module.system=haste
 module.system.haste.use_name_reducers=true
 # keep the following in sync with server/haste/hasteImpl.js

RNTester/NativeModuleExample/NativeScreenshotManager.js

@@ -10,8 +10,8 @@
 
 'use strict';
 
-import type {TurboModule} from 'RCTExport';
-import * as TurboModuleRegistry from 'TurboModuleRegistry';
+import type {TurboModule} from '../../Libraries/TurboModule/RCTExport';
+import * as TurboModuleRegistry from '../../Libraries/TurboModule/TurboModuleRegistry';
 
 export interface Spec extends TurboModule {
   +getConstants: () => {||};

RNTester/RCTTest/RCTSnapshotNativeComponent.js

@@ -10,9 +10,9 @@
 
 'use strict';
 
-import type {SyntheticEvent} from 'CoreEventTypes';
-import type {ViewProps} from 'ViewPropTypes';
-import type {NativeComponent} from 'ReactNative';
+import type {SyntheticEvent} from '../../Libraries/Types/CoreEventTypes';
+import type {ViewProps} from '../../Libraries/Components/View/ViewPropTypes';
+import type {NativeComponent} from '../../Libraries/Renderer/shims/ReactNative';
 
 type SnapshotReadyEvent = SyntheticEvent<
   $ReadOnly<{
@@ -28,7 +28,7 @@ type NativeProps = $ReadOnly<{|
 
 type SnapshotViewNativeType = Class<NativeComponent<NativeProps>>;
 
-const requireNativeComponent = require('requireNativeComponent');
+const requireNativeComponent = require('../../Libraries/ReactNative/requireNativeComponent');
 
 module.exports = ((requireNativeComponent(
   'RCTSnapshot',

RNTester/js/AnimatedGratuitousApp/AnExApp.js

@@ -14,7 +14,7 @@ const React = require('react');
 const ReactNative = require('react-native');
 const {Animated, LayoutAnimation, PanResponder, StyleSheet, View} = ReactNative;
 
-const AnExSet = require('AnExSet');
+const AnExSet = require('./AnExSet');
 
 const CIRCLE_SIZE = 80;
 const CIRCLE_MARGIN = 18;

RNTester/js/AssetScaledImageExample.js

@@ -14,7 +14,7 @@ const React = require('react');
 const ReactNative = require('react-native');
 const {Image, StyleSheet, View, ScrollView} = ReactNative;
 
-import type {PhotoIdentifier} from 'CameraRoll';
+import type {PhotoIdentifier} from '../../Libraries/CameraRoll/CameraRoll';
 
 type Props = $ReadOnly<{|
   asset: PhotoIdentifier,

RNTester/js/CameraRollExample.js

@@ -28,7 +28,10 @@ const CameraRollView = require('./CameraRollView');
 
 const AssetScaledImageExampleView = require('./AssetScaledImageExample');
 
-import type {PhotoIdentifier, GroupTypes} from 'CameraRoll';
+import type {
+  PhotoIdentifier,
+  GroupTypes,
+} from '../../Libraries/CameraRoll/CameraRoll';
 
 type Props = $ReadOnly<{|
   navigator?: ?Array<

RNTester/js/CameraRollView.js

@@ -24,14 +24,14 @@ const {
   View,
 } = ReactNative;
 
-const groupByEveryN = require('groupByEveryN');
-const logError = require('logError');
+const groupByEveryN = require('../../Libraries/Utilities/groupByEveryN');
+const logError = require('../../Libraries/Utilities/logError');
 
 import type {
   PhotoIdentifier,
   PhotoIdentifiersPage,
   GetPhotosParams,
-} from 'CameraRoll';
+} from '../../Libraries/CameraRoll/CameraRoll';
 
 type Props = $ReadOnly<{|
   /**

RNTester/js/FlatListExample.js

@@ -12,14 +12,14 @@
 
 import type {Item} from './ListExampleShared';
 
-const Alert = require('Alert');
+const Alert = require('../../Libraries/Alert/Alert');
 const React = require('react');
 const ReactNative = require('react-native');
 const {Animated, StyleSheet, View} = ReactNative;
 
 const RNTesterPage = require('./RNTesterPage');
 
-const infoLog = require('infoLog');
+const infoLog = require('../../Libraries/Utilities/infoLog');
 
 const {
   FooterComponent,

RNTester/js/ImageCapInsetsExample.js

@@ -13,7 +13,7 @@
 const React = require('react');
 const ReactNative = require('react-native');
 
-const nativeImageSource = require('nativeImageSource');
+const nativeImageSource = require('../../Libraries/Image/nativeImageSource');
 const {Image, StyleSheet, Text, View} = ReactNative;
 
 type Props = $ReadOnly<{||}>;