Add internal operation that converts a growable list to a fixed list.

runtime/vm/bootstrap_natives.h

Index: runtime/vm/bootstrap_natives.h
diff --git a/runtime/vm/bootstrap_natives.h b/runtime/vm/bootstrap_natives.h
index b114062e9e08c8b1dd6386aedb8ddc9593767596..9c98ae47681fa54cd34b1e64c13901967e6504b1 100644
--- a/runtime/vm/bootstrap_natives.h
+++ b/runtime/vm/bootstrap_natives.h
@@ -336,6 +336,7 @@ namespace dart {
   V(GrowableList_getCapacity, 1)                                               \
   V(GrowableList_setLength, 2)                                                 \
   V(GrowableList_setData, 2)                                                   \
+  V(GrowableList_toFixedLength, 1)                                             \

[Ivan Posva, 2014/02/06 16:57:00]

The native is not on the class GrowableList, maybe it should be?

[Lasse Reichstein Nielsen, 2014/02/07 12:55:25]

I don't intend to make the method public. It behaves differently wrt. the
growable array in the VM and dart2js, and that is fine because we only use it in
cases where the growable array is discarded.
If we exposed it to users, we would want it to behave consistent behavior.

Can I put it on GrowableList and make it visible in other internal libraries
(like dart:_internal), but not to user libraries?

   V(WeakProperty_new, 2)                                                       \
   V(WeakProperty_getKey, 1)                                                    \
   V(WeakProperty_getValue, 1)                                                  \