observatory/vm: add support for computing/passing end tokens on classes

runtime/vm/object.h

 // 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.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include <limits>
 #include "include/dart_api.h"
 #include "platform/assert.h"
@@ skipping 730 matching lines @@
   RawString* UserVisibleName() const;
 
   virtual RawString* DictionaryName() const { return Name(); }
 
   RawScript* script() const { return raw_ptr()->script_; }
   void set_script(const Script& value) const;
 
   intptr_t token_pos() const { return raw_ptr()->token_pos_; }
   void set_token_pos(intptr_t value) const;
 
+  intptr_t ComputeEndTokenPos() const;
+
   // This class represents the signature class of a closure function if
   // signature_function() is not null.
   // The associated function may be a closure function (with code) or a
   // signature function (without code) solely describing the result type and
   // parameter types of the signature.
   RawFunction* signature_function() const {
     return raw_ptr()->signature_function_;
   }
   static intptr_t signature_function_offset() {
     return OFFSET_OF(RawClass, signature_function_);
@@ skipping 6389 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_