Make Iterable more powerful (and lazy).

runtime/lib/array.dart

Index: runtime/lib/array.dart
diff --git a/runtime/lib/array.dart b/runtime/lib/array.dart
index aa1168f3c998bd9578a0fc619206f7d428825183..7ae49b8c1164cd3953ba84e98193466f7f35b4fc 100644
--- a/runtime/lib/array.dart
+++ b/runtime/lib/array.dart
@@ -72,19 +72,19 @@ class _ObjectArray<E> implements List<E> {
         this, new _GrowableObjectArray.withCapacity(length), f);
   }
 
-  reduce(initialValue, combine(previousValue, E element)) {
-    return Collections.reduce(this, initialValue, combine);
-  }
-
   Collection<E> filter(bool f(E element)) {
     return Collections.filter(this, new _GrowableObjectArray<E>(), f);
   }
 
+  reduce(initialValue, combine(previousValue, E element)) {
+    return Collections.reduce(this, initialValue, combine);
+  }
+
   bool every(bool f(E element)) {
     return Collections.every(this, f);
   }
 
-  bool some(bool f(E element)) {
+  bool any(bool f(E element)) {
     return Collections.some(this, f);
   }