Rename fletch -> dartino

tests/debugger/find_file_test.dart

 // 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.
 
 // Test that we get a meaningful breakpoint when breaking on a non-empty
 // column that does not point to the first sub-expression of the line.
 
-// FletchDebuggerCommands=bf a.dart 5,r,bf b.dart 5,2,c,c
+// DartinoDebuggerCommands=bf a.dart 5,r,bf b.dart 5,2,c,c
 
 import "find_file_test/a/a.dart" as a_a;
 import "find_file_test/a/b.dart" as a_b;
 import "find_file_test/b/b.dart" as b_b;
 
 int foo() {
   int x = a_a.a();
   int y = a_b.b();
   int z = b_b.b();
   return x + y + z;
 }
 
 main() {
   return foo() == 60 ? 0 : 1;
 }