- Ensure that we do not enter symbols twice: Set the canonical bit

runtime/vm/hash_table.h

Index: runtime/vm/hash_table.h
diff --git a/runtime/vm/hash_table.h b/runtime/vm/hash_table.h
index c1622322137a2364d095f335ee86e41403ec263d..398335f0bd129d85d88eb6188eb92798fc79ebc1 100644
--- a/runtime/vm/hash_table.h
+++ b/runtime/vm/hash_table.h
@@ -636,7 +636,7 @@ class HashSet : public BaseIterTable {
       BaseIterTable::InsertKey(entry, key);
       return key.raw();
     } else {
-      return BaseIterTable::GetPayload(entry, 0);

[Florian Schneider, 2016/04/12 05:49:03]

Oops. Good catch.

+      return BaseIterTable::GetKey(entry);
     }
   }