Change getRange to sublist. Make getRange deprecated.

runtime/lib/typeddata.dart

Index: runtime/lib/typeddata.dart
diff --git a/runtime/lib/typeddata.dart b/runtime/lib/typeddata.dart
index 6f9b86b1a24fe6565ad1c0d91742aefe61041568..6129ae694d991a97e542df38d4284bf1f001169a 100644
--- a/runtime/lib/typeddata.dart
+++ b/runtime/lib/typeddata.dart
@@ -434,13 +434,19 @@ abstract class _TypedListBase {
     return new Set.from(this);
   }
 
-  List getRange(int start, int length) {
+  List sublist(int start, [int end]) {
+    if (end == null) end = length;
+    int length = end - start;
     _rangeCheck(this.length, start, length);
     List result = _createList(length);
     result.setRange(0, length, this, start);
     return result;
   }
 
+  List getRange(int start, int length) {
+    return sublist(start, start + length);
+  }
+
   void setRange(int start, int length, List from, [int startFrom = 0]) {
     IterableMixinWorkaround.setRangeList(this, start, length, from, startFrom);
   }
@@ -1521,7 +1527,7 @@ class _ExternalUint16Array extends _TypedList implements Uint16List {
 
 class _ExternalInt32Array extends _TypedList implements Int32List {
   // Factory constructors.
-  
+
   factory _ExternalInt32Array(int length) {
     if (length < 0) {
       String message = "$length must be greater than 0";