Roll Observatory packages and add a roll script

analyzer/lib/src/generated/utilities_general.dart

Index: analyzer/lib/src/generated/utilities_general.dart
diff --git a/analyzer/lib/src/generated/utilities_general.dart b/analyzer/lib/src/generated/utilities_general.dart
deleted file mode 100644
index 62f40293d286a7a2c6c8e935809ebd6a8944c51f..0000000000000000000000000000000000000000
--- a/analyzer/lib/src/generated/utilities_general.dart
+++ /dev/null
@@ -1,157 +0,0 @@
-// 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.
-
-// This code was auto-generated, is not intended to be edited, and is subject to
-// significant change. Please see the README file for more information.
-
-library engine.utilities.general;
-
-import 'dart:profiler';
-
-/**
- * Jenkins hash function, optimized for small integers.
- * Borrowed from sdk/lib/math/jenkins_smi_hash.dart.
- */
-class JenkinsSmiHash {
-  static int combine(int hash, int value) {
-    hash = 0x1fffffff & (hash + value);
-    hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
-    return hash ^ (hash >> 6);
-  }
-
-  static int finish(int hash) {
-    hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
-    hash = hash ^ (hash >> 11);
-    return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
-  }
-
-  static int hash2(a, b) => finish(combine(combine(0, a), b));
-
-  static int hash3(a, b, c) => finish(combine(combine(combine(0, a), b), c));
-
-  static int hash4(a, b, c, d) =>
-      finish(combine(combine(combine(combine(0, a), b), c), d));
-}
-
-/**
- * Helper class for gathering performance statistics.  This class is modeled on
- * the UserTag class in dart:profiler so that it can interoperate easily with
- * it.
- */
-abstract class PerformanceTag {
-  /**
-   * Return a list of all [PerformanceTag]s which have been created.
-   */
-  static List<PerformanceTag> get all => _PerformanceTagImpl.all.toList();
-
-  /**
-   * Return the current [PerformanceTag] for the isolate.
-   */
-  static PerformanceTag get current => _PerformanceTagImpl.current;
-
-  /**
-   * Return the [PerformanceTag] that is initially current.  This is intended
-   * to track time when the system is performing unknown operations.
-   */
-  static PerformanceTag get UNKNOWN => _PerformanceTagImpl.UNKNOWN;
-
-  /**
-   * Create a [PerformanceTag] having the given [label].  A [UserTag] will also
-   * be created, having the same [label], so that performance information can
-   * be queried using the observatory.
-   */
-  factory PerformanceTag(String label) = _PerformanceTagImpl;
-
-  /**
-   * Return the total number of milliseconds that this [PerformanceTag] has
-   * been the current [PerformanceTag] for the isolate.
-   *
-   * This call is safe even if this [PerformanceTag] is current.
-   */
-  int get elapsedMs;
-
-  /**
-   * Return the label for this [PerformanceTag].
-   */
-  String get label;
-
-  /**
-   * Make this the current tag for the isolate, and return the previous tag.
-   */
-  PerformanceTag makeCurrent();
-
-  /**
-   * Make this the current tag for the isolate, run [f], and restore the
-   * previous tag. Returns the result of invoking [f].
-   */
-  makeCurrentWhile(f());
-
-  /**
-   * Reset the total time tracked by all [PerformanceTag]s to zero.
-   */
-  static void reset() {
-    for (_PerformanceTagImpl tag in _PerformanceTagImpl.all) {
-      tag.stopwatch.reset();
-    }
-  }
-}
-
-class _PerformanceTagImpl implements PerformanceTag {
-  /**
-   * The current performance tag for the isolate.
-   */
-  static _PerformanceTagImpl current = UNKNOWN;
-
-  static final _PerformanceTagImpl UNKNOWN = new _PerformanceTagImpl('unknown');
-
-  /**
-   * A list of all performance tags that have been created so far.
-   */
-  static List<_PerformanceTagImpl> all = <_PerformanceTagImpl>[];
-
-  /**
-   * The [UserTag] associated with this [PerformanceTag].
-   */
-  final UserTag userTag;
-
-  /**
-   * Stopwatch tracking the amount of time this [PerformanceTag] has been the
-   * current tag for the isolate.
-   */
-  final Stopwatch stopwatch;
-
-  _PerformanceTagImpl(String label)
-      : userTag = new UserTag(label),
-        stopwatch = new Stopwatch() {
-    all.add(this);
-  }
-
-  @override
-  int get elapsedMs => stopwatch.elapsedMilliseconds;
-
-  @override
-  String get label => userTag.label;
-
-  @override
-  PerformanceTag makeCurrent() {
-    if (identical(this, current)) {
-      return current;
-    }
-    _PerformanceTagImpl previous = current;
-    previous.stopwatch.stop();
-    stopwatch.start();
-    current = this;
-    userTag.makeCurrent();
-    return previous;
-  }
-
-  makeCurrentWhile(f()) {
-    PerformanceTag prevTag = makeCurrent();
-    try {
-      return f();
-    } finally {
-      prevTag.makeCurrent();
-    }
-  }
-}