Rename fletch -> dartino

src/vm/lookup_cache.h

 // Copyright (c) 2014, 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_LOOKUP_CACHE_H_
 #define SRC_VM_LOOKUP_CACHE_H_
 
 #include "src/shared/globals.h"
 #include "src/shared/utils.h"
 
-namespace fletch {
+namespace dartino {
 
 class Class;
 class Function;
 
 class LookupCache {
  public:
   static const int kPrimarySize = 4096;
   static const int kSecondarySize = 2111;
 
   // If you add an offset here, remember to add the corresponding static_assert
@@ skipping 40 matching lines @@
   uword hash = reinterpret_cast<uword>(clazz) ^ selector;
   return hash & (kPrimarySize - 1);
 }
 
 uword LookupCache::ComputeSecondaryIndex(Class* clazz, int selector) {
   ASSERT(!Utils::IsPowerOfTwo(kSecondarySize));
   uword hash = reinterpret_cast<uword>(clazz) - selector;
   return hash % kSecondarySize;
 }
 
-}  // namespace fletch
+}  // namespace dartino
 
 #endif  // SRC_VM_LOOKUP_CACHE_H_