Enable ReferenceEquality error prone check

Bug: b/296992810
Change-Id: I75fddc11fb6e246592f160505a847820e64ab2c7
diff --git a/src/main/java/com/android/tools/r8/ir/code/BasicBlock.java b/src/main/java/com/android/tools/r8/ir/code/BasicBlock.java
index f1db962..0dbf1fd 100644
--- a/src/main/java/com/android/tools/r8/ir/code/BasicBlock.java
+++ b/src/main/java/com/android/tools/r8/ir/code/BasicBlock.java
@@ -1105,6 +1105,7 @@
    *
    * @return true if any guards were renamed.
    */
+  @SuppressWarnings("ReferenceEquality")
   public boolean renameGuardsInCatchHandlers(NonIdentityGraphLens graphLens, GraphLens codeLens) {
     assert hasCatchHandlers();
     boolean anyGuardsRenamed = false;
@@ -2040,6 +2041,7 @@
     }
   }
 
+  @SuppressWarnings("ReferenceEquality")
   public void deduplicatePhis() {
     PhiEquivalence equivalence = new PhiEquivalence();
     HashMap<Wrapper<Phi>, Phi> wrapper2phi = new HashMap<>();