Fix typo in assertion

Bug: 140378266
Change-Id: I046096a65581e86aafba7c2a3dd9e2c9ef047ab7
diff --git a/src/main/java/com/android/tools/r8/ir/analysis/proto/schema/ProtoMessageInfo.java b/src/main/java/com/android/tools/r8/ir/analysis/proto/schema/ProtoMessageInfo.java
index b9a9f86..6078bfc 100644
--- a/src/main/java/com/android/tools/r8/ir/analysis/proto/schema/ProtoMessageInfo.java
+++ b/src/main/java/com/android/tools/r8/ir/analysis/proto/schema/ProtoMessageInfo.java
@@ -146,7 +146,7 @@
             int auxData = field.getAuxData();
             int oldHasBitsObjectIndex = auxData / BITS_PER_HAS_BITS_WORD;
             int oldHasBitsObjectBitIndex = auxData % BITS_PER_HAS_BITS_WORD;
-            assert newHasBitsObjectIndices.containsValue(oldHasBitsObjectIndex);
+            assert newHasBitsObjectIndices.containsKey(oldHasBitsObjectIndex);
             field.setAuxData(
                 newHasBitsObjectIndices.get(oldHasBitsObjectIndex) * BITS_PER_HAS_BITS_WORD
                     + oldHasBitsObjectBitIndex);