Add a mode to completely deserialize scope chains

src/compiler-dispatcher/compiler-dispatcher-job.cc

Index: src/compiler-dispatcher/compiler-dispatcher-job.cc
diff --git a/src/compiler-dispatcher/compiler-dispatcher-job.cc b/src/compiler-dispatcher/compiler-dispatcher-job.cc
index fbf91ab7417a905805a7dd7aff968936798bf883..6f44063888ddda6976b36a8fcd7e934392b65051 100644
--- a/src/compiler-dispatcher/compiler-dispatcher-job.cc
+++ b/src/compiler-dispatcher/compiler-dispatcher-job.cc
@@ -69,6 +69,9 @@ void CompilerDispatcherJob::PrepareToParseOnMainThread() {
   parse_info_->set_hash_seed(isolate_->heap()->HashSeed());
   parse_info_->set_unicode_cache(unicode_cache_.get());
   parser_.reset(new Parser(parse_info_.get()));
+  parser_->DeserializeScopeChain(
+      parse_info_.get(), handle(function_->context(), isolate_),
+      Scope::DeserializationMode::kDeserializeOffHeap);
   status_ = CompileJobStatus::kReadyToParse;
 }