Add List.asMap().

editor/util/plugins/com.google.dart.java2dart/resources/java_core.dart

 library java.core;
 
 import "dart:math" as math;
 import "dart:uri";
 
 class JavaSystem {
   static int currentTimeMillis() {
     return (new DateTime.now()).millisecondsSinceEpoch;
   }
 
@@ skipping 297 matching lines @@
     elements.setRange(start, length, from, startFrom);
   }
 
   void removeRange(int start, int length) {
     elements.removeRange(start, length);
   }
 
   void insertRange(int start, int length, [E fill]) {
     elements.insertRange(start, length, fill);
   }
+
+  Map<int, E> asMap() {
+    return elements.asMap();
+  }
 }
 
 class JavaIterator<E> {
   Collection<E> _collection;
   List<E> _elements = new List<E>();
   int _coPos = 0;
   int _elPos = 0;
   E _current = null;
   JavaIterator(this._collection) {
     Iterator iterator = _collection.iterator;
@@ skipping 47 matching lines @@
     return true;
   }
   return false;
 }
 
 void javaMapPutAll(Map target, Map source) {
   source.forEach((k, v) {
     target[k] = v;
   });
 }