Rename fletch -> dartino

src/tools/driver/platform_macos.cc

 // 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.
 
-#if defined(FLETCH_TARGET_OS_MACOS)
+#if defined(DARTINO_TARGET_OS_MACOS)
 
 #include <fcntl.h>
 #include <mach-o/dyld.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <sys/errno.h>
 #include <unistd.h>
 
 #include "src/shared/assert.h"
 
 #include "src/tools/driver/platform.h"
 
 #define MAX_SIGNAL SIGUSR2
 
-namespace fletch {
+namespace dartino {
 
 static int signal_pipe[] = {-1, -1};
 
 static void SignalHandler(int signal) {
   int old_errno = errno;
   if (write(signal_pipe[1], &signal, sizeof(signal)) == -1) {
     const char message[] = "write failed in signal handler\n";
     write(STDERR_FILENO, message, sizeof(message));
     UNREACHABLE();
   }
@@ skipping 73 matching lines @@
     // WTERMSIG in wait(2). So to forward the signalled exit status to our
     // parent process, we send a signal to ourselves.
     signal(-exit_code, SIG_DFL);
     raise(-exit_code);
   } else {
     exit(exit_code);
   }
   UNREACHABLE();
 }
 
-}  // namespace fletch
+}  // namespace dartino
 
-#endif  // defined(FLETCH_TARGET_OS_MACOS)
+#endif  // defined(DARTINO_TARGET_OS_MACOS)