Remove Collection, Collections and clean up List/Set/Queue implementations of retain/remove.

pkg/analyzer_experimental/lib/src/generated/java_core.dart

Index: pkg/analyzer_experimental/lib/src/generated/java_core.dart
diff --git a/pkg/analyzer_experimental/lib/src/generated/java_core.dart b/pkg/analyzer_experimental/lib/src/generated/java_core.dart
index 900c2ca7093040a5dcb0a186381e0bfcbefaf939..798d9e4fbd41ac2347d6f8ba033fb16a59955e33 100644
--- a/pkg/analyzer_experimental/lib/src/generated/java_core.dart
+++ b/pkg/analyzer_experimental/lib/src/generated/java_core.dart
@@ -2,6 +2,7 @@ library java.core;
 
 import "dart:math" as math;
 import "dart:uri";
+import "dart:collection" show ListBase;
 
 class JavaSystem {
   static int currentTimeMillis() {
@@ -257,7 +258,7 @@ class IOException implements Exception {
   String toString() => "IOException";
 }
 
-class ListWrapper<E> extends Collection<E> implements List<E> {
+class ListWrapper<E> extends ListBase<E> implements List<E> {
   List<E> elements = new List<E>();
 
   Iterator<E> get iterator {
@@ -344,13 +345,13 @@ class ListWrapper<E> extends Collection<E> implements List<E> {
 }
 
 class JavaIterator<E> {
-  Collection<E> _collection;
+  Iterable<E> _iterable;
   List<E> _elements = new List<E>();
   int _coPos = 0;
   int _elPos = 0;
   E _current = null;
-  JavaIterator(this._collection) {
-    Iterator iterator = _collection.iterator;
+  JavaIterator(this._iterable) {
+    Iterator iterator = _iterable.iterator;
     while (iterator.moveNext()) {
       _elements.add(iterator.current);
     }
@@ -368,13 +369,13 @@ class JavaIterator<E> {
   }
 
   void remove() {
-    if (_collection is List) {
+    if (_iterable is List) {
       _coPos--;
-      (_collection as List).remove(_coPos);
-    } else if (_collection is Set) {
-      _collection.remove(_current);
+      (_iterable as List).remove(_coPos);
+    } else if (_iterable is Set) {
+      _iterable.remove(_current);
     } else {
-      throw new StateError("Unsupported collection ${_collection.runtimeType}");
+      throw new StateError("Unsupported iterable ${_iterable.runtimeType}");
     }
   }
 }