Make pub lish validation gitignore-aware.

test/validator/executable_test.dart

 // Copyright (c) 2013, the Dart 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 file.
 
 import 'package:pub/src/entrypoint.dart';
 import 'package:pub/src/validator.dart';
 import 'package:pub/src/validator/executable.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
@@ skipping 33 matching lines @@
           "name": "test_pkg",
           "version": "1.0.0",
           "executables": {
             "nope": "not_there",
             "nada": null
           }
         })
       ]).create();
       expectValidationWarning(executable);
     });
+
+    integration('has .gitignored one or more listed executables', () {
+      d.git(appPath, [
+        d.pubspec({
+          "name": "test_pkg",
+          "version": "1.0.0",
+          "executables": {
+            "one": "one_script",
+            "two": null
+          }
+        }),
+        d.dir("bin", [
+          d.file("one_script.dart", "main() => print('ok');"),
+          d.file("two.dart", "main() => print('ok');")
+        ]),
+        d.file(".gitignore", "bin")
+      ]).create();
+      expectValidationWarning(executable);
+    });
   });
 }