Introduce a SignatureData class so that signature functions can store both their

runtime/vm/raw_object.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/raw_object.h"
 
 #include "vm/become.h"
 #include "vm/class_table.h"
 #include "vm/dart.h"
 #include "vm/freelist.h"
@@ skipping 375 matching lines @@
 
 
 intptr_t RawClosureData::VisitClosureDataPointers(
     RawClosureData* raw_obj,
     ObjectPointerVisitor* visitor) {
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return ClosureData::InstanceSize();
 }
 
 
+intptr_t RawSignatureData::VisitSignatureDataPointers(
+    RawSignatureData* raw_obj,
+    ObjectPointerVisitor* visitor) {
+  visitor->VisitPointers(raw_obj->from(), raw_obj->to());
+  return SignatureData::InstanceSize();
+}
+
+
 intptr_t RawRedirectionData::VisitRedirectionDataPointers(
     RawRedirectionData* raw_obj,
     ObjectPointerVisitor* visitor) {
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return RedirectionData::InstanceSize();
 }
 
 
 bool RawFunction::CheckUsageCounter(RawFunction* raw_fun) {
   // NOTE: This code runs while GC is in progress and runs within
@@ skipping 590 matching lines @@
 intptr_t RawUserTag::VisitUserTagPointers(RawUserTag* raw_obj,
                                           ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return UserTag::InstanceSize();
 }
 
 
 }  // namespace dart