Rename fletch -> dartino

src/vm/interpreter_x64.cc

Index: src/vm/interpreter_x64.cc
diff --git a/src/vm/interpreter_x64.cc b/src/vm/interpreter_x64.cc
index 863b4cbe1f4d0fa220a745b1ff6528bc5b97c830..30234ac96bb7210bb247f851cc81398f0df13233 100644
--- a/src/vm/interpreter_x64.cc
+++ b/src/vm/interpreter_x64.cc
@@ -2,7 +2,7 @@
 // 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.
 
-#if defined(FLETCH_TARGET_X64)
+#if defined(DARTINO_TARGET_X64)
 
 #include "src/shared/bytecodes.h"
 #include "src/shared/names.h"
@@ -18,7 +18,7 @@
 
 #define __ assembler()->
 
-namespace fletch {
+namespace dartino {
 
 class InterpreterGenerator {
  public:
@@ -2099,6 +2099,6 @@ void InterpreterGeneratorX64::RestoreState() {
   __ ret();
 }
 
-}  // namespace fletch
+}  // namespace dartino
 
-#endif  // defined FLETCH_TARGET_X64
+#endif  // defined DARTINO_TARGET_X64