[snapshot] full setup delegate should also be able to deserialize.

src/setup-isolate-deserialize.cc

 // Copyright 2017 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/setup-isolate.h"
 
 #include "src/base/logging.h"
 #include "src/interpreter/interpreter.h"
 #include "src/isolate.h"
 #include "src/ostreams.h"
 
 namespace v8 {
 namespace internal {
 
 void SetupIsolateDelegate::SetupBuiltins(Isolate* isolate,
                                          bool create_heap_objects) {
   DCHECK(!create_heap_objects);
   // No actual work to be done; builtins will be deserialized from the snapshot.
-  isolate->builtins()->MarkInitialized();
 }
 
 void SetupIsolateDelegate::SetupInterpreter(
     interpreter::Interpreter* interpreter, bool create_heap_objects) {
 #ifdef V8_USE_SNAPSHOT
   if (FLAG_trace_ignition || FLAG_trace_ignition_codegen ||
       FLAG_trace_ignition_dispatches) {
     OFStream os(stdout);
     os << "Warning: --trace-ignition-* flags must be passed at mksnapshot "
        << "time or used with nosnapshot builds." << std::endl;
   }
 #endif
   DCHECK(interpreter->IsDispatchTableInitialized());
 }
 
 }  // namespace internal
 }  // namespace v8