Add spec for HeapCapture (#24899)

Summary:
Part of #24875, adds a spec for HeapCapture

## Changelog

[General] [Added] - TM Spec for HeapCapture
Pull Request resolved: https://github.com/facebook/react-native/pull/24899

Reviewed By: fkgozali

Differential Revision: D15393464

Pulled By: RSNara

fbshipit-source-id: d8778285753ce8dbc87204ecfbddfa7339acd264

Libraries/Core/setUpBatchedBridge.js

@@ -22,7 +22,7 @@ BatchedBridge.registerLazyCallableModule('JSTimers', () =>
   require('./Timers/JSTimers'),
 );
 BatchedBridge.registerLazyCallableModule('HeapCapture', () =>
-  require('../Utilities/HeapCapture'),
+  require('../HeapCapture/HeapCapture'),
 );
 BatchedBridge.registerLazyCallableModule('SamplingProfiler', () =>
   require('../Performance/SamplingProfiler'),

Libraries/HeapCapture/HeapCapture.js

@@ -10,6 +10,8 @@
 
 'use strict';
 
+import NativeHeapCapture from './NativeHeapCapture';
+
 const HeapCapture = {
   captureHeap: function(path: string) {
     let error = null;
@@ -20,10 +22,9 @@ const HeapCapture = {
       console.log('HeapCapture.captureHeap error: ' + e.toString());
       error = e.toString();
     }
-    require('../BatchedBridge/NativeModules').JSCHeapCapture.captureComplete(
-      path,
-      error,
-    );
+    if (NativeHeapCapture) {
+      NativeHeapCapture.captureComplete(path, error);
+    }
   },
 };
 

Libraries/HeapCapture/NativeHeapCapture.js

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+'use strict';
+
+import type {TurboModule} from 'RCTExport';
+import * as TurboModuleRegistry from 'TurboModuleRegistry';
+
+export interface Spec extends TurboModule {
+  // Common interface
+  +captureHeap: (path: string) => void;
+
+  // Android only
+  +captureComplete: (path: string, error: ?string) => void;
+}
+
+export default TurboModuleRegistry.get<Spec>('HeapCapture');