Enable registerSegment in Venice

Summary:
Enable registerSegment in Venice and verify bundle splitting works for Pokes with Venice.

Changelog: [Internal]

Reviewed By: ejanzer

Differential Revision: D22666115

fbshipit-source-id: 74ef830b802634b1019d4371873aba599438de37

ReactAndroid/src/main/java/com/facebook/react/bridge/ReactContext.java

@@ -462,4 +462,15 @@ public JavaScriptContextHolder getJavaScriptContextHolder() {
   public @Nullable String getSourceURL() {
     return mCatalystInstance.getSourceURL();
   }
+
+  /**
+   * Register a JS segment after loading it from cache or server, make sure mCatalystInstance is
+   * properly initialised and not null before calling.
+   *
+   * @param segmentId
+   * @param path
+   */
+  public void registerSegment(int segmentId, String path) {
+    Assertions.assertNotNull(mCatalystInstance).registerSegment(segmentId, path);
+  }
 }