[interpreter] move the dispatch table off heap.

src/snapshot/serialize.cc

Index: src/snapshot/serialize.cc
diff --git a/src/snapshot/serialize.cc b/src/snapshot/serialize.cc
index 096576f0a0e913b7aff318a6bb576bf6e7397779..9bdb0bf99d5b3abc6cc6fb36bed44b9864e0f312 100644
--- a/src/snapshot/serialize.cc
+++ b/src/snapshot/serialize.cc
@@ -82,6 +82,8 @@ ExternalReferenceTable::ExternalReferenceTable(Isolate* isolate) {
   Add(ExternalReference::address_of_one_half().address(),
       "LDoubleConstant::one_half");
   Add(ExternalReference::isolate_address(isolate).address(), "isolate");
+  Add(ExternalReference::interpreter_dispatch_table_address(isolate).address(),
+      "Interpreter::dispatch_table_address");
   Add(ExternalReference::address_of_negative_infinity().address(),
       "LDoubleConstant::negative_infinity");
   Add(ExternalReference::power_double_double_function(isolate).address(),