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test/codegen/expect/collection/src/queue_list.js

 dart_library.library('collection/src/queue_list', null, /* Imports */[
   'dart/_runtime',
   'dart/core',
   'dart/collection'
 ], /* Lazy imports */[
 ], function(exports, dart, core, collection) {
   'use strict';
   let dartx = dart.dartx;
   const _head = Symbol('_head');
   const _tail = Symbol('_tail');
@@ skipping 15 matching lines @@
           initialCapacity = QueueList$()._nextPowerOf2(initialCapacity);
         }
         dart.assert(QueueList$()._isPowerOf2(initialCapacity));
         this[_table] = core.List$(E).new(initialCapacity);
       }
       static from(source) {
         if (dart.is(source, core.List)) {
           let length = source[dartx.length];
           let queue = new (QueueList$(E))(dart.notNull(length) + 1);
           dart.assert(dart.notNull(queue[_table][dartx.length]) > dart.notNull(length));
-          let sourceList = dart.as(source, core.List);
-          queue[_table][dartx.setRange](0, length, dart.as(sourceList, core.Iterable$(E)), 0);
+          let sourceList = source;
+          queue[_table][dartx.setRange](0, length, sourceList, 0);
           queue[_tail] = length;
           return queue;
         } else {
           let _ = new (QueueList$(E))();
           _.addAll(source);
           return _;
         }
       }
       add(element) {
         dart.as(element, E);
         this[_add](element);
       }
       addAll(elements) {
         dart.as(elements, core.Iterable$(E));
         if (dart.is(elements, core.List)) {
-          let list = dart.as(elements, core.List);
+          let list = elements;
           let addCount = list[dartx.length];
           let length = this.length;
           if (dart.notNull(length) + dart.notNull(addCount) >= dart.notNull(this[_table][dartx.length])) {
             this[_preGrow](dart.notNull(length) + dart.notNull(addCount));
-            this[_table][dartx.setRange](length, dart.notNull(length) + dart.notNull(addCount), dart.as(list, core.Iterable$(E)), 0);
+            this[_table][dartx.setRange](length, dart.notNull(length) + dart.notNull(addCount), list, 0);
             this[_tail] = dart.notNull(this[_tail]) + dart.notNull(addCount);
           } else {
             let endSpace = dart.notNull(this[_table][dartx.length]) - dart.notNull(this[_tail]);
             if (dart.notNull(addCount) < endSpace) {
-              this[_table][dartx.setRange](this[_tail], dart.notNull(this[_tail]) + dart.notNull(addCount), dart.as(list, core.Iterable$(E)), 0);
+              this[_table][dartx.setRange](this[_tail], dart.notNull(this[_tail]) + dart.notNull(addCount), list, 0);
               this[_tail] = dart.notNull(this[_tail]) + dart.notNull(addCount);
             } else {
               let preSpace = dart.notNull(addCount) - endSpace;
-              this[_table][dartx.setRange](this[_tail], dart.notNull(this[_tail]) + endSpace, dart.as(list, core.Iterable$(E)), 0);
-              this[_table][dartx.setRange](0, preSpace, dart.as(list, core.Iterable$(E)), endSpace);
+              this[_table][dartx.setRange](this[_tail], dart.notNull(this[_tail]) + endSpace, list, 0);
+              this[_table][dartx.setRange](0, preSpace, list, endSpace);
               this[_tail] = preSpace;
             }
           }
         } else {
           for (let element of elements)
             this[_add](element);
         }
       }
       toString() {
         return collection.IterableBase.iterableToFullString(this, "{", "}");
@@ skipping 147 matching lines @@
       'length'
     ]);
     QueueList._INITIAL_CAPACITY = 8;
     return QueueList;
   });
   let QueueList = QueueList$();
   // Exports:
   exports.QueueList$ = QueueList$;
   exports.QueueList = QueueList;
 });