Fix array-related errorprone warnings

The ArrayEquals, ArrayHashCode, ArrayToString, and
ArraysAsListPrimitiveArray errorprone findings were
demoted from errors to warnings. Fix existing
occurrences of them so they can be made errors again.

Bug: 242630963
Test: RUN_ERROR_PRONE=true m javac-check
Change-Id: Ia7d0797c253641bb72f9de60a95e2ea2c4a7e695
diff --git a/Android.bp b/Android.bp
index 437785a..d8ddf51 100644
--- a/Android.bp
+++ b/Android.bp
@@ -48,4 +48,9 @@
     srcs: ["isoparser/src/main/java/**/*.java"],
     java_resource_dirs: ["isoparser/src/main/resources"],
 
+    errorprone: {
+        javacflags: [
+            "-Xep:ArrayToString:WARN",
+        ],
+    },
 }