Mark NativeModule.java as nullsafe

Summary:
This class doesn't have any FIXMEs to fix, so we can just annotate it and protect against future issues!

Changelog: [Android][Fixed] Mark NativeModule.java as nullsafe

Reviewed By: javache

Differential Revision: D72704850

fbshipit-source-id: a71f3acddb0382410739b9632fba509fffcfebfd

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/NativeModule.java

@@ -7,6 +7,7 @@
 
 package com.facebook.react.bridge;
 
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.proguard.annotations.DoNotStrip;
 import com.facebook.react.common.annotations.DeprecatedInNewArchitecture;
 import com.facebook.react.common.annotations.StableReactNativeAPI;
@@ -24,6 +25,7 @@ import javax.annotation.Nonnull;
  * not provide any Java code (so they can be reused on other platforms), and instead should register
  * themselves using {@link CxxModuleWrapper}.
  */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 @StableReactNativeAPI
 @DoNotStrip
 public interface NativeModule {