Inline the StackResource constructor/destructor.

vm/zone.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_ZONE_H_
 #define VM_ZONE_H_
 
 #include "platform/utils.h"
 #include "vm/allocation.h"
 #include "vm/handles.h"
@@ skipping 81 matching lines @@
   friend class Zone;
   friend class ApiZone;
   template<typename T, typename B> friend class BaseGrowableArray;
   DISALLOW_COPY_AND_ASSIGN(BaseZone);
 };
 
 
 class Zone : public StackResource {
  public:
   // Create an empty zone and set is at the current zone for the Isolate.
-  explicit Zone(Isolate* isolate);
+  explicit Zone(BaseIsolate* isolate);
 
   // Delete all memory associated with the zone.
   ~Zone();
 
   // Allocate 'size' bytes of memory in the zone; expands the zone by
   // allocating new segments of memory on demand using 'new'.
   uword Allocate(intptr_t size) { return zone_.Allocate(size); }
 
   // Allocate 'new_size' bytes of memory and copies 'old_size' bytes from
   // 'data' into new allocated memory. Uses current zone.
@@ skipping 52 matching lines @@
   }
 
   // Check that the result has the proper alignment and return it.
   ASSERT(Utils::IsAligned(result, kAlignment));
   return result;
 }
 
 }  // namespace dart
 
 #endif  // VM_ZONE_H_