Mark classes of package uimanager as @Nullsafe

Summary:
All these classes are NullSafe, let's mark them as NullSafe(Local) to ensure lint detect errors in the future

bypass-github-export-checks

changelog: [internal] internal

Reviewed By: javache

Differential Revision: D54027186

fbshipit-source-id: 2cee2b598c3ef15641222018703a7d6a467ba30c

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/SimpleViewManager.java

@@ -8,6 +8,7 @@
 package com.facebook.react.uimanager;
 
 import android.view.View;
+import com.facebook.infer.annotation.Nullsafe;
 
 /**
  * Common base class for most of the {@link ViewManager}s. It provides support for most common
@@ -17,6 +18,7 @@ import android.view.View;
  *
  * @param <T> the view handled by this manager
  */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public abstract class SimpleViewManager<T extends View>
     extends BaseViewManager<T, LayoutShadowNode> {
 

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/Spacing.java

@@ -7,6 +7,7 @@
 
 package com.facebook.react.uimanager;
 
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.yoga.YogaConstants;
 import java.util.Arrays;
 
@@ -15,6 +16,7 @@ import java.util.Arrays;
  * properly implement interactions and updates for properties like margin, marginLeft, and
  * marginHorizontal.
  */
+@Nullsafe(Nullsafe.Mode.LOCAL)
 public class Spacing {
 
   /** Spacing type that represents the left direction. E.g. {@code marginLeft}. */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIConstantsProviderManager.java

@@ -7,6 +7,7 @@
 
 package com.facebook.react.uimanager;
 
+import com.facebook.infer.annotation.Nullsafe;
 import com.facebook.jni.HybridData;
 import com.facebook.proguard.annotations.DoNotStrip;
 import com.facebook.proguard.annotations.DoNotStripAny;
@@ -15,6 +16,7 @@ import com.facebook.react.bridge.RuntimeExecutor;
 import com.facebook.soloader.SoLoader;
 import javax.annotation.Nullable;
 
+@Nullsafe(Nullsafe.Mode.LOCAL)
 @DoNotStripAny
 public class UIConstantsProviderManager {