Rename fletch -> dartino

src/vm/mark_sweep.h

 // Copyright (c) 2015, the Dartino 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.md file.
 
 #ifndef SRC_VM_MARK_SWEEP_H_
 #define SRC_VM_MARK_SWEEP_H_
 
 #include "src/vm/object.h"
 #include "src/vm/program.h"
 #include "src/vm/process.h"
 
-namespace fletch {
+namespace dartino {
 
 class MarkingStackChunk {
  public:
   MarkingStackChunk()
       : next_chunk_(NULL), next_(&backing_[0]), limit_(next_ + kChunkSize) {}
 
   ~MarkingStackChunk() { ASSERT(next_chunk_ == NULL); }
 
   bool IsEmpty() { return next_ == &backing_[0]; }
 
@@ skipping 264 matching lines @@
   virtual void ChunkEnd(uword end) { AddFreeListChunk(end); }
 
   int used() const { return used_; }
 
  private:
   FreeList* free_list_;
   uword free_start_;
   int used_;
 };
 
-}  // namespace fletch
+}  // namespace dartino
 
 #endif  // SRC_VM_MARK_SWEEP_H_