Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/analyzer/lib/src/generated/utilities_dart.dart

Index: mojo/public/dart/third_party/analyzer/lib/src/generated/utilities_dart.dart
diff --git a/mojo/public/dart/third_party/analyzer/lib/src/generated/utilities_dart.dart b/mojo/public/dart/third_party/analyzer/lib/src/generated/utilities_dart.dart
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+// 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 engine.utilities.dart;
+
+import 'java_core.dart';
+
+/**
+ * Check whether [uri1] starts with (or 'is prefixed by') [uri2] by checking
+ * path segments.
+ */
+bool startsWith(Uri uri1, Uri uri2) {
+  List<String> uri1Segments = uri1.pathSegments;
+  List<String> uri2Segments = uri2.pathSegments.toList();
+  // Punt if empty (https://github.com/dart-lang/sdk/issues/24126)
+  if (uri2Segments.isEmpty) {
+    return false;
+  }
+  // Trim trailing empty segments ('/foo/' => ['foo', ''])
+  if (uri2Segments.last == '') {
+    uri2Segments.removeLast();
+  }
+
+  if (uri2Segments.length > uri1Segments.length) {
+    return false;
+  }
+
+  for (int i = 0; i < uri2Segments.length; ++i) {
+    if (uri2Segments[i] != uri1Segments[i]) {
+      return false;
+    }
+  }
+  return true;
+}
+
+/**
+ * The enumeration `ParameterKind` defines the different kinds of parameters. There are two
+ * basic kinds of parameters: required and optional. Optional parameters are further divided into
+ * two kinds: positional optional and named optional.
+ */
+class ParameterKind extends Enum<ParameterKind> {
+  static const ParameterKind REQUIRED =
+      const ParameterKind('REQUIRED', 0, false);
+
+  static const ParameterKind POSITIONAL =
+      const ParameterKind('POSITIONAL', 1, true);
+
+  static const ParameterKind NAMED = const ParameterKind('NAMED', 2, true);
+
+  static const List<ParameterKind> values = const [REQUIRED, POSITIONAL, NAMED];
+
+  /**
+   * A flag indicating whether this is an optional parameter.
+   */
+  final bool isOptional;
+
+  /**
+   * Initialize a newly created kind with the given state.
+   *
+   * @param isOptional `true` if this is an optional parameter
+   */
+  const ParameterKind(String name, int ordinal, this.isOptional)
+      : super(name, ordinal);
+}