Some code cleanups in arrays, fix rangeCheck (issue 2899).

corelib/src/implementation/arrays.dart

Index: corelib/src/implementation/arrays.dart
===================================================================
--- corelib/src/implementation/arrays.dart	(revision 11570)
+++ corelib/src/implementation/arrays.dart	(working copy)
@@ -80,8 +80,8 @@
     if (length < 0) {
       throw new IllegalArgumentException("negative length $length");
     }
-    if (start < 0 || start >= a.length) {
-      String message = "$start must be in the range [0..${a.length})";
+    if (start < 0 ) {
+      String message = "$start must be greater equal to 0";

[Bill Hesse, 2012/09/06 16:19:43]

greater than or equal to

[srdjan, 2012/09/07 13:19:08]

Fixed in next CL.

       throw new IndexOutOfRangeException(message);
     }
     if (start + length > a.length) {