VM: Use PC offset instead of absolute PC in exception handler info.

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 "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 3376 matching lines @@
 };
 
 
 class ExceptionHandlers : public Object {
  public:
   intptr_t num_entries() const;
 
   void GetHandlerInfo(intptr_t try_index,
                       RawExceptionHandlers::HandlerInfo* info) const;
 
-  intptr_t HandlerPC(intptr_t try_index) const;
+  uword HandlerPCOffset(intptr_t try_index) const;
   intptr_t OuterTryIndex(intptr_t try_index) const;
   bool NeedsStacktrace(intptr_t try_index) const;
 
   void SetHandlerInfo(intptr_t try_index,
                       intptr_t outer_try_index,
-                      intptr_t handler_pc,
+                      uword handler_pc_offset,
                       bool needs_stacktrace,
                       bool has_catch_all) const;
 
   RawArray* GetHandledTypes(intptr_t try_index) const;
   void SetHandledTypes(intptr_t try_index, const Array& handled_types) const;
   bool HasCatchAll(intptr_t try_index) const;
 
   static intptr_t InstanceSize() {
     ASSERT(sizeof(RawExceptionHandlers) ==
            OFFSET_OF_RETURNED_VALUE(RawExceptionHandlers, data));
@@ skipping 4287 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_