Add a "pub global run" command.

sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart

Index: sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart
diff --git a/sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart b/sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart
index 5561d4434d4336ebcdecb8a37d922d3543da6ce5..8294594a5cb0865b2cb5b96255fd91f3ec68b769 100644
--- a/sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart
+++ b/sdk/lib/_internal/pub/lib/src/command/list_package_dirs.dart
@@ -36,7 +36,7 @@ class ListPackageDirsCommand extends PubCommand {
     // Include the local paths to all locked packages.
     var packages = {};
     var futures = [];
-    entrypoint.loadLockFile().packages.forEach((name, package) {
+    entrypoint.lockFile.packages.forEach((name, package) {
       var source = entrypoint.cache.sources[package.source];
       futures.add(source.getDirectory(package).then((packageDir) {
         packages[name] = path.join(packageDir, "lib");