Update hash to satisfy assert

Change-Id: Ib44b8adfc248d3c61933290d14ce27650ec36faa
diff --git a/src/main/java/com/android/tools/r8/ir/analysis/value/DefiniteBitsNumberValue.java b/src/main/java/com/android/tools/r8/ir/analysis/value/DefiniteBitsNumberValue.java
index 778e61b..aa12771 100644
--- a/src/main/java/com/android/tools/r8/ir/analysis/value/DefiniteBitsNumberValue.java
+++ b/src/main/java/com/android/tools/r8/ir/analysis/value/DefiniteBitsNumberValue.java
@@ -135,7 +135,7 @@
 
   @Override
   public int hashCode() {
-    int hash = 31 * (31 * (31 + definitelySetBits) + definitelyUnsetBits);
+    int hash = 31 * (31 + definitelySetBits) + definitelyUnsetBits;
     assert hash == Objects.hash(definitelySetBits, definitelyUnsetBits);
     return hash;
   }