Properly export uin32_bias double constant.

src/serialize.cc

Index: src/serialize.cc
diff --git a/src/serialize.cc b/src/serialize.cc
index ef1461f1e9b6b5b634055cea1be441934495c90f..eceadf704994b201c7c2b1329dac3a6e69ddf299 100644
--- a/src/serialize.cc
+++ b/src/serialize.cc
@@ -581,6 +581,10 @@ void ExternalReferenceTable::PopulateTable(Isolate* isolate) {
       UNCLASSIFIED,
       63,
       "Heap::allocation_sites_list_address()");
+  Add(ExternalReference::address_of_uint32_bias().address(),
+      UNCLASSIFIED,
+      64,
+      "uint32_bias");
 
   // Add a small set of deopt entry addresses to encoder without generating the
   // deopt table code, which isn't possible at deserialization time.