Create frequently used symbols in the vm isolate

vm/snapshot.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/snapshot.h"
 
 #include "platform/assert.h"
 #include "vm/bigint_operations.h"
 #include "vm/bootstrap.h"
 #include "vm/exceptions.h"
@@ skipping 159 matching lines @@
     Instance& result = Instance::ZoneHandle(isolate(), Instance::null());
     AddBackRef(object_id, &result, kIsNotDeserialized);
 
     cls_ ^= ReadObjectImpl();  // Read class information.
     ASSERT(!cls_.IsNull());
     intptr_t instance_size = cls_.instance_size();
     ASSERT(instance_size > 0);
     if (kind_ == Snapshot::kFull) {
       result ^= AllocateUninitialized(cls_, instance_size);
     } else {
-      result ^= Object::Allocate(cls_, instance_size, Heap::kNew);
+      result ^= Object::Allocate(cls_.id(), instance_size, Heap::kNew);
     }
     return result.raw();
   } else {
     ASSERT((class_header & kSmiTagMask) != 0);
     cls_ = LookupInternalClass(class_header);
     ASSERT(!cls_.IsNull());
   }
 
   // Similarly Array and ImmutableArray objects are also similarly only
   // allocated here, the individual array elements are read later.
@@ skipping 358 matching lines @@
       result = &(Instance::ZoneHandle(isolate(), Instance::null()));
       AddBackRef(object_id, result, kIsDeserialized);
       cls_ ^= ReadObjectImpl();
       ASSERT(!cls_.IsNull());
       instance_size = cls_.instance_size();
       ASSERT(instance_size > 0);
       // Allocate the instance and read in all the fields for the object.
       if (kind_ == Snapshot::kFull) {
         *result ^= AllocateUninitialized(cls_, instance_size);
       } else {
-        *result ^= Object::Allocate(cls_, instance_size, Heap::kNew);
+        *result ^= Object::Allocate(cls_.id(), instance_size, Heap::kNew);
       }
     } else {
       cls_ ^= ReadObjectImpl();
       ASSERT(!cls_.IsNull());
       instance_size = cls_.instance_size();
     }
     intptr_t offset = Object::InstanceSize();
     while (offset < instance_size) {
       obj_ = ReadObjectRef();
       result->SetFieldAtOffset(offset, obj_);
@@ skipping 439 matching lines @@
     RawObject* raw_obj = *current;
     if (as_references_) {
       writer_->WriteObjectRef(raw_obj);
     } else {
       writer_->WriteObjectImpl(raw_obj);
     }
   }
 }
 
 }  // namespace dart