Refactor removeRange.

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 079abf3916fcf097e584ad8dd80f0a591032453a..d26803edb4b0fe06ec1f761f2e77284dc859a7dc 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -7020,7 +7020,7 @@ class DomMimeTypeArray implements JavaScriptIndexingBehavior, List<DomMimeType>
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -7303,7 +7303,7 @@ class DomPluginArray implements JavaScriptIndexingBehavior, List<DomPlugin> nati
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -7713,7 +7713,7 @@ class DomStringList implements JavaScriptIndexingBehavior, List<String> native "
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -7975,7 +7975,7 @@ class _ChildrenElementList extends ListBase<Element> {
     _childElements.retainWhere(test);
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnimplementedError();
   }
 
@@ -8101,7 +8101,7 @@ class _FrozenElementList extends ListBase {
     throw new UnsupportedError('');
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError('');
   }
 
@@ -10453,7 +10453,7 @@ class FileList implements JavaScriptIndexingBehavior, List<File> native "*FileLi
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -10937,7 +10937,7 @@ class Float32Array extends ArrayBufferView implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -11163,7 +11163,7 @@ class Float64Array extends ArrayBufferView implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -11876,7 +11876,7 @@ class HtmlAllCollection implements JavaScriptIndexingBehavior, List<Node> native
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -12091,7 +12091,7 @@ class HtmlCollection implements JavaScriptIndexingBehavior, List<Node> native "*
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -14129,7 +14129,7 @@ class Int16Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -14355,7 +14355,7 @@ class Int32Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -14581,7 +14581,7 @@ class Int8Array extends ArrayBufferView implements JavaScriptIndexingBehavior, L
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -17017,7 +17017,7 @@ class _ChildNodeListLazy extends ListBase<Node> {
     throw new UnsupportedError(
         "Cannot setRange on immutable List.");
   }
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError(
         "Cannot removeRange on immutable List.");
   }
@@ -17584,7 +17584,7 @@ class NodeList implements JavaScriptIndexingBehavior, List<Node> native "*NodeLi
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -19994,7 +19994,7 @@ class SourceBufferList extends EventTarget implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -20282,7 +20282,7 @@ class SpeechGrammarList implements JavaScriptIndexingBehavior, List<SpeechGramma
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -21733,7 +21733,7 @@ class TextTrackCueList implements List<TextTrackCue>, JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -21946,7 +21946,7 @@ class TextTrackList extends EventTarget implements JavaScriptIndexingBehavior, L
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -22385,7 +22385,7 @@ class TouchList implements JavaScriptIndexingBehavior, List<Touch> native "*Touc
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -22861,7 +22861,7 @@ class Uint16Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -23087,7 +23087,7 @@ class Uint32Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -23313,7 +23313,7 @@ class Uint8Array extends ArrayBufferView implements JavaScriptIndexingBehavior,
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -23536,7 +23536,7 @@ class Uint8ClampedArray extends Uint8Array implements JavaScriptIndexingBehavior
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -25825,7 +25825,7 @@ class _ClientRectList implements JavaScriptIndexingBehavior, List<Rect> native "
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -26039,7 +26039,7 @@ class _CssRuleList implements JavaScriptIndexingBehavior, List<CssRule> native "
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -26244,7 +26244,7 @@ class _CssValueList extends _CSSValue implements JavaScriptIndexingBehavior, Lis
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -26517,7 +26517,7 @@ class _EntryArray implements JavaScriptIndexingBehavior, List<Entry> native "*En
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -26722,7 +26722,7 @@ class _EntryArraySync implements JavaScriptIndexingBehavior, List<_EntrySync> na
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -26970,7 +26970,7 @@ class _GamepadList implements JavaScriptIndexingBehavior, List<Gamepad> native "
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -27238,7 +27238,7 @@ class _NamedNodeMap implements JavaScriptIndexingBehavior, List<Node> native "*N
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -27514,7 +27514,7 @@ class _SpeechInputResultList implements JavaScriptIndexingBehavior, List<SpeechI
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -27719,7 +27719,7 @@ class _SpeechRecognitionResultList implements JavaScriptIndexingBehavior, List<S
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -27924,7 +27924,7 @@ class _StyleSheetList implements JavaScriptIndexingBehavior, List<StyleSheet> na
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
@@ -28758,6 +28758,12 @@ class _EventStreamSubscription<T extends Event> extends StreamSubscription<T> {
       _target.$dom_removeEventListener(_eventType, _onData, _useCapture);
     }
   }
+
+  Future asFuture([var futureValue]) {
+    // We just need a future that will never succeed or fail.
+    Completer completer = new Completer();
+    return completer.future;
+  }
 }
 
 
@@ -31061,7 +31067,7 @@ class _WrappedList<E> implements List<E> {
     _list.setRange(start, end, iterable, skipCount);
   }
 
-  void removeRange(int start, int length) { _list.removeRange(start, length); }
+  void removeRange(int start, int end) { _list.removeRange(start, end); }
 
   void insertRange(int start, int length, [E fill]) {
     _list.insertRange(start, length, fill);