Fix crash when removing root nodes

Summary: If a root node is being removed and has an id of NO_ID, it was likely already removed previously, likely due to a race condition caused by RN's async nature. In those cases, let's avoid crashing the app and instead silently ignore the root view removal.

Reviewed By: mdvacca

Differential Revision: D13055140

fbshipit-source-id: ec10f4c79f2ba21614f52f57557f6b3d734c9461

Author: ayc1

ReactAndroid/src/main/java/com/facebook/react/uimanager/ShadowNodeRegistry.java

@@ -9,6 +9,7 @@
 
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
+import android.view.View;
 import com.facebook.react.common.SingleThreadAsserter;
 
 /**
@@ -36,6 +37,11 @@ public void addRootNode(ReactShadowNode node) {
 
   public void removeRootNode(int tag) {
     mThreadAsserter.assertNow();
+    if (tag == View.NO_ID) {
+      // This root node has already been removed (likely due to a threading issue caused by async js
+      // execution). Ignore this root removal.
+      return;
+    }
     if (!mRootTags.get(tag)) {
       throw new IllegalViewOperationException(
           "View with tag " + tag + " is not registered as a root view");