Added Object._cid getter, optimized it. Added to (some) classes a static final _clCid. Use those to…

runtime/lib/array.dart

Index: runtime/lib/array.dart
===================================================================
--- runtime/lib/array.dart	(revision 22603)
+++ runtime/lib/array.dart	(working copy)
@@ -5,6 +5,7 @@
 
 // TODO(srdjan): Use shared array implementation.
 class _ObjectArray<E> implements List<E> {
+  static final int _clCid = (new List(0))._cid;

[siva, 2013/05/13 20:38:00]

clCid seems redundant 'class class id'
maybe _classId

[Ivan Posva, 2013/05/13 22:12:37]

I really like the suggestion of _classId. Also please allocate a _ObjectArray
here instead of relying on the List constructor doing the right thing.

[srdjan, 2013/05/14 17:46:31]

Done.

[srdjan, 2013/05/14 17:46:31]

Done.

 
   factory _ObjectArray(length) native "ObjectArray_allocate";
 
@@ -275,6 +276,7 @@
 // implementation (checks when modifying). We should keep watching
 // the inline cache misses.
 class _ImmutableArray<E> implements List<E> {
+  static final int _clCid = (const [])._cid;
 
   factory _ImmutableArray._uninstantiable() {
     throw new UnsupportedError(