Move ReactHost.destroy to ReactHostInterface (facebook#38697)

Summary:
Pull Request resolved: facebook#38697

Move ReactHost.destroy to ReactHostInterface

changelog: [internal] internal

Reviewed By: rshest

Differential Revision: D47915485

fbshipit-source-id: 491af8fa76cb6eb738acc9a87922ac8099e7547e

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridgeless/ReactHost.java

@@ -461,7 +461,8 @@ public TaskInterface<Void> reload(String reason) {
    *     This exception will be used to log properly the cause of destroy operation.
    * @return A task that completes when React Native gets destroyed.
    */
-  public Task<Void> destroy(String reason, @Nullable Exception ex) {
+  @Override
+  public TaskInterface<Void> destroy(String reason, @Nullable Exception ex) {
     final String method = "destroy()";
     if (ReactFeatureFlags.enableBridgelessArchitectureNewCreateReloadDestroy) {
       return Task.call(

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/interfaces/ReactHostInterface.kt

@@ -93,4 +93,15 @@ interface ReactHostInterface {
    * @return A task that completes when React Native reloads
    */
   fun reload(reason: String): TaskInterface<Void>
+
+  /**
+   * Entrypoint to destroy the ReactInstance. If the ReactInstance is reloading, will wait until
+   * reload is finished, before destroying.
+   *
+   * @param reason [String] describing why ReactHost is being destroyed (e.g. memmory pressure)
+   * @param ex [Exception] exception that caused the trigger to destroy ReactHost (or null) This
+   *   exception will be used to log properly the cause of destroy operation.
+   * @return A task that completes when React Native gets destroyed.
+   */
+  fun destroy(reason: String, ex: Exception?): TaskInterface<Void>
 }