Remove some unnecessary class handle creations.

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 4200 matching lines @@
   // in the specified Growable Object Array. This is done by first truncating
   // the Growable Object Array's backing array to the currently used size and
   // returning the truncated backing array.
   // The remaining unused part of the backing array is marked as an Array
   // object or a regular Object so that it can be traversed during garbage
   // collection. The backing array of the original Growable Object Array is
   // set to an empty array.
   static RawArray* MakeArray(const GrowableObjectArray& growable_array);
 
  protected:
-  static RawArray* New(const Class& cls,
+  static RawArray* New(intptr_t class_id,
                        intptr_t len,
                        Heap::Space space = Heap::kNew);
 
  private:
   RawObject** ObjectAddr(intptr_t index) const {
     // TODO(iposva): Determine if we should throw an exception here.
     ASSERT((index >= 0) && (index < Length()));
     return &raw_ptr()->data()[index];
   }
 
@@ skipping 135 matching lines @@
   static void Copy(const ByteArray& dst,
                    intptr_t dst_offset,
                    const ByteArray& src,
                    intptr_t src_offset,
                    intptr_t length);
 
  protected:
   virtual uint8_t* ByteAddr(intptr_t byte_offset) const;
 
   template<typename HandleT, typename RawT>
-  static RawT* NewImpl(const Class& cls,
+  static RawT* NewImpl(intptr_t class_id,
                        intptr_t len,
                        Heap::Space space);
 
   template<typename HandleT, typename RawT, typename ElementT>
-  static RawT* NewImpl(const Class& cls,
+  static RawT* NewImpl(intptr_t class_id,
                        const ElementT* data,
                        intptr_t len,
                        Heap::Space space);
 
   template<typename HandleT, typename RawT, typename ElementT>
-  static RawT* NewExternalImpl(const Class& cls,
+  static RawT* NewExternalImpl(intptr_t class_id,
                                ElementT* data,
                                intptr_t len,
                                void* peer,
                                Dart_PeerFinalizer callback,
                                Heap::Space space);
 
   template<typename HandleT, typename RawT, typename ElementT>
   static RawT* ReadFromImpl(SnapshotReader* reader,
                             intptr_t object_id,
                             intptr_t tags,
@@ skipping 1390 matching lines @@
     if (this->CharAt(i) != str.CharAt(begin_index + i)) {
       return false;
     }
   }
   return true;
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_