Support allocating and calling closures in the new non-optimizing compiler.

runtime/vm/scopes.h

Index: runtime/vm/scopes.h
diff --git a/runtime/vm/scopes.h b/runtime/vm/scopes.h
index 16a18cb52a12ea49a6b8c43f90eec1a8fb399202..56dc6b93f4a30d9779e5686b2b0ef54e1da8d5c6 100644
--- a/runtime/vm/scopes.h
+++ b/runtime/vm/scopes.h
@@ -62,7 +62,7 @@ class LocalVariable : public ZoneAllocated {
   // out, and fell back to a different compilation mode).  In any case, it
   // should not change the index once set.
   void set_index(int index) {
-    ASSERT(!HasIndex() || (index_ == index));
+    ASSERT(!HasIndex());
     ASSERT(index != kUnitializedIndex);
     index_ = index;
   }