Fix bug in ByteArray.subByteArray implementation for omitted length.

runtime/lib/byte_array.dart

Index: runtime/lib/byte_array.dart
diff --git a/runtime/lib/byte_array.dart b/runtime/lib/byte_array.dart
index a6efae205473d075a9ed794c0464b41f25f6a40b..feadf0e90a7024149f784b45fd33613a80d91da2 100644
--- a/runtime/lib/byte_array.dart
+++ b/runtime/lib/byte_array.dart
@@ -1513,8 +1513,11 @@ class _ByteArrayView implements ByteArray {
   }
 
   ByteArray subByteArray([int start = 0, int length]) {
+    if (start is! int) throw new ArgumentError("start is not an int");
     if (length === null) {

[karlklose, 2012/10/11 08:18:18]

Use ?length here?

-      length = this.lengthInBytes();
+      length = this.lengthInBytes() - start;
+    } else if (length is! int) {
+      throw new ArgumentError("length is not an int");
     }
     return new _ByteArrayView(_array, _offset + start, length);
   }