Rename fletch -> dartino

src/vm/program_info_block.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_PROGRAM_INFO_BLOCK_H_
 #define SRC_VM_PROGRAM_INFO_BLOCK_H_
 
 #include "src/vm/program.h"
 
-namespace fletch {
+namespace dartino {
 class ProgramInfoBlock {
  public:
   ProgramInfoBlock();
 
   void PopulateFromProgram(Program* program);
   void WriteToProgram(Program* program);
 
   Object** roots() { return &entry_; }
 
   void* end_of_roots() { return &main_arity_; }
 
   void set_main_arity(int arity) { main_arity_ = arity; }
   int main_arity() { return main_arity_; }
 
  private:
   // This has to remain in sync with all the roots that are traversed by
   // IterateRoots in Program. Also, the type does not really matter as long
   // as it also is a pointer type and they won't be used in order (as in
   // their names are meaningless).
   Object* entry_;
 #define ROOT_DECLARATION(type, name, CamelName) type* name##_;
   ROOTS_DO(ROOT_DECLARATION)
 #undef ROOT_DECLARATION
   // We also store the arity of main. This field is also used as a marker
   // of the end of the roots data structure.
   intptr_t main_arity_;
 };
 
-}  // namespace fletch
+}  // namespace dartino
 #endif  // SRC_VM_PROGRAM_INFO_BLOCK_H_