Update to use the latest analyzer

lib/runtime/dart/_internal.js

 var _internal;
 (function(exports) {
   'use strict';
   class EfficientLength extends core.Object {}
   let ListIterable$ = dart.generic(function(E) {
     class ListIterable extends collection.IterableBase$(E) {
       ListIterable() {
         super.IterableBase();
       }
       get [core.$iterator]() {
@@ skipping 182 matching lines @@
       [core.$take](count) {
         return new (SubListIterable$(E))(this, 0, count);
       }
       [core.$takeWhile](test) {
         return super[core.$takeWhile](test);
       }
       [core.$toList](opts) {
         let growable = opts && 'growable' in opts ? opts.growable : true;
         let result = null;
         if (growable) {
-          result = ((_) => {
-            _[core.$length] = this.length;
-            return _;
-          }).bind(this)(new (core.List$(E))());
+          result = new (core.List$(E))();

[Jennifer Messerly, 2015/04/08 20:21:26]

FYI: this is a bug fix. Analyzer used to think all variables in methods were
mutated in closures, regardless of whether any closures actually existed :) 
(they were missing visitMethodDeclaration, so it thought the result= assignment
in the else branch was in a closure when it compared against the
_enclosingFunction, which was incorrectly `null`)

+          result[core.$length] = this.length;
         } else {
           result = new (core.List$(E))(this.length);
         }
         for (let i = 0; dart.notNull(i) < dart.notNull(this.length); i = dart.notNull(i) + 1) {
           result[core.$set](i, this.elementAt(i));
         }
         return result;
       }
       [core.$toSet]() {
         let result = new (core.Set$(E))();
@@ skipping 1693 matching lines @@
   exports.ReversedListIterable = ReversedListIterable;
   exports.UnmodifiableListError = UnmodifiableListError;
   exports.NonGrowableListError = NonGrowableListError;
   exports.makeListFixedLength = makeListFixedLength;
   exports.Lists = Lists;
   exports.printToConsole = printToConsole;
   exports.Sort = Sort;
   exports.Symbol = Symbol;
   exports.POWERS_OF_TEN = POWERS_OF_TEN;
 })(_internal || (_internal = {}));