Support "--checked" in pub run and global run.

lib/src/global_packages.dart

 // Copyright (c) 2014, 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.global_packages;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
@@ skipping 311 matching lines @@
     return new Entrypoint(PathSource.pathFromDescription(id.description),
         cache);
   }
 
   /// Runs [package]'s [executable] with [args].
   ///
   /// If [executable] is available in its precompiled form, that will be
   /// recompiled if the SDK has been upgraded since it was first compiled and
   /// then run. Otherwise, it will be run from source.
   ///
-  /// If [mode] is passed, it's used as the barback mode; it defaults to
+  /// If [checked] is true, the program is run in checked mode. If [mode] is
+  /// passed, it's used as the barback mode; it defaults to
   /// [BarbackMode.RELEASE].
   ///
   /// Returns the exit code from the executable.
   Future<int> runExecutable(String package, String executable,
-      Iterable<String> args, {BarbackMode mode}) {
+      Iterable<String> args, {bool checked: false, BarbackMode mode}) {
     if (mode == null) mode = BarbackMode.RELEASE;
 
     var binDir = p.join(_directory, package, 'bin');
     if (mode != BarbackMode.RELEASE ||
         !fileExists(p.join(binDir, '$executable.dart.snapshot'))) {
       return find(package).then((entrypoint) {
         return exe.runExecutable(entrypoint, package, executable, args,
-            mode: mode, isGlobal: true);
+            isGlobal: true, checked: checked, mode: mode);
       });
     }
 
     // Unless the user overrides the verbosity, we want to filter out the
     // normal pub output shown while loading the environment.
     if (log.verbosity == log.Verbosity.NORMAL) {
       log.verbosity = log.Verbosity.WARNING;
     }
 
     var snapshotPath = p.join(binDir, '$executable.dart.snapshot');
-    return exe.runSnapshot(snapshotPath, args, recompile: () {
+    return exe.runSnapshot(snapshotPath, args, checked: checked, recompile: () {
       log.fine("$package:$executable is out of date and needs to be "
           "recompiled.");
       return find(package)
           .then((entrypoint) => entrypoint.loadPackageGraph())
           .then((graph) => _precompileExecutables(graph.entrypoint, package));
     });
   }
 
   /// Gets the path to the lock file for an activated cached package with
   /// [name].
@@ skipping 411 matching lines @@
   }
 
   /// Returns the value of the property named [name] in the bin stub script
   /// [source].
   String _binStubProperty(String source, String name) {
     var pattern = new RegExp(quoteRegExp(name) + r": ([a-zA-Z0-9_-]+)");
     var match = pattern.firstMatch(source);
     return match == null ? null : match[1];
   }
 }