Add a version of heap snapshots that use only fields and stack frames as roots and only include ins…

runtime/vm/isolate.h

 // Copyright (c) 2013, 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.
 
 #ifndef RUNTIME_VM_ISOLATE_H_
 #define RUNTIME_VM_ISOLATE_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/atomic.h"
@@ skipping 143 matching lines @@
   }
 
   // Register a newly introduced class.
   void RegisterClass(const Class& cls);
   void RegisterClassAt(intptr_t index, const Class& cls);
   void ValidateClassTable();
 
   // Visit all object pointers.
   void IterateObjectPointers(ObjectPointerVisitor* visitor,
                              bool validate_frames);
+  void IterateStackPointers(ObjectPointerVisitor* visitor,
+                            bool validate_frames);
 
   // Visits weak object pointers.
   void VisitWeakPersistentHandles(HandleVisitor* visitor);
 
   // Prepares all threads in an isolate for Garbage Collection.
   void PrepareForGC();
 
   StoreBuffer* store_buffer() { return store_buffer_; }
 
   ThreadRegistry* thread_registry() const { return thread_registry_; }
@@ skipping 484 matching lines @@
   void LowLevelShutdown();
   void Shutdown();
 
   void BuildName(const char* name_prefix);
 
   void ProfileIdle();
 
   // Visit all object pointers. Caller must ensure concurrent sweeper is not
   // running, and the visitor must not allocate.
   void VisitObjectPointers(ObjectPointerVisitor* visitor, bool validate_frames);
+  void VisitStackPointers(ObjectPointerVisitor* visitor, bool validate_frames);
 
   void set_user_tag(uword tag) { user_tag_ = tag; }
 
   RawGrowableObjectArray* GetAndClearPendingServiceExtensionCalls();
   RawGrowableObjectArray* pending_service_extension_calls() const {
     return pending_service_extension_calls_;
   }
   void set_pending_service_extension_calls(const GrowableObjectArray& value);
   RawGrowableObjectArray* registered_service_extension_handlers() const {
     return registered_service_extension_handlers_;
@@ skipping 305 matching lines @@
   intptr_t* spawn_count_;
 
   Dart_IsolateFlags isolate_flags_;
   bool paused_;
   bool errors_are_fatal_;
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_ISOLATE_H_