Regenerate pub sources.

sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart

Index: sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart
diff --git a/sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart b/sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart
index 20349ec429ff1f775b17a2dca55f6beee9ae48b9..537edc43635ba7e08a54910f10c412146d317735 100644
--- a/sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/validator/executable.dart
@@ -1,17 +1,30 @@
+// Copyright (c) 2012, 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.
+
 library pub.validator.executable;
+
 import 'dart:async';
+
 import 'package:path/path.dart' as p;
+
 import '../entrypoint.dart';
 import '../validator.dart';
+
+/// Validates that a package's pubspec doesn't contain executables that
+/// reference non-existent scripts.
 class ExecutableValidator extends Validator {
-  ExecutableValidator(Entrypoint entrypoint) : super(entrypoint);
+  ExecutableValidator(Entrypoint entrypoint)
+      : super(entrypoint);
+
   Future validate() {
     final completer0 = new Completer();
     scheduleMicrotask(() {
       try {
-        var binFiles = entrypoint.root.listFiles(
-            beneath: "bin",
-            recursive: false).map(((path) => entrypoint.root.relative(path))).toList();
+        var binFiles =
+            entrypoint.root.listFiles(beneath: "bin", recursive: false).map(((path) {
+          return entrypoint.root.relative(path);
+        })).toList();
         entrypoint.root.pubspec.executables.forEach(((executable, script) {
           var scriptPath = p.join("bin", "$script.dart");
           if (binFiles.contains(scriptPath)) return;
@@ -19,9 +32,9 @@ class ExecutableValidator extends Validator {
               'Your pubspec.yaml lists an executable "$executable" that '
                   'points to a script "$scriptPath" that does not exist.');
         }));
-        completer0.complete(null);
-      } catch (e0) {
-        completer0.completeError(e0);
+        completer0.complete();
+      } catch (e, s) {
+        completer0.completeError(e, s);
       }
     });
     return completer0.future;