Remove unused or unneeded stuff from java_core.dart.

pkg/analyzer/lib/src/dart/element/type.dart

Index: pkg/analyzer/lib/src/dart/element/type.dart
diff --git a/pkg/analyzer/lib/src/dart/element/type.dart b/pkg/analyzer/lib/src/dart/element/type.dart
index 6aef34dc228645291398620e702a204ae74d3309..d30186b460b9464827a5a709f88d07f3fe5ec474 100644
--- a/pkg/analyzer/lib/src/dart/element/type.dart
+++ b/pkg/analyzer/lib/src/dart/element/type.dart
@@ -15,6 +15,7 @@ import 'package:analyzer/src/generated/engine.dart'
 import 'package:analyzer/src/generated/java_core.dart';
 import 'package:analyzer/src/generated/scanner.dart' show Keyword;
 import 'package:analyzer/src/generated/type_system.dart';
+import 'package:analyzer/src/generated/utilities_collection.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
 
 /**
@@ -1689,7 +1690,7 @@ class InterfaceTypeImpl extends TypeImpl implements InterfaceType {
     }
     List<DartType> newTypeArguments = TypeImpl.substitute(
         typeArguments, argumentTypes, parameterTypes, prune);
-    if (JavaArrays.equals(newTypeArguments, typeArguments)) {
+    if (listsEqual(newTypeArguments, typeArguments)) {
       return this;
     }