Removed fixed dependencies

packages/analyzer/lib/src/generated/utilities_general.dart

Index: packages/analyzer/lib/src/generated/utilities_general.dart
diff --git a/packages/analyzer/lib/src/generated/utilities_general.dart b/packages/analyzer/lib/src/generated/utilities_general.dart
index d120a81abdd6e0a9b12554d53bbb5c556f21071f..b9dca93c681bf8f7f9f51d12122a44e30e9ec685 100644
--- a/packages/analyzer/lib/src/generated/utilities_general.dart
+++ b/packages/analyzer/lib/src/generated/utilities_general.dart
@@ -2,10 +2,53 @@
 // 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.general;
+library analyzer.src.generated.utilities_general;
 
+import 'dart:collection';
 import 'dart:developer' show UserTag;
 
+/**
+ * Test if the given [value] is `false` or the string "false" (case-insensitive).
+ */
+bool isFalse(Object value) =>
+    value is bool ? !value : toLowerCase(value) == 'false';
+
+/**
+ * Test if the given [value] is `true` or the string "true" (case-insensitive).
+ */
+bool isTrue(Object value) =>
+    value is bool ? value : toLowerCase(value) == 'true';
+
+/**
+ * Safely convert the given [value] to a bool value, or return `null` if the
+ * value coult not be converted.
+ */
+bool toBool(Object value) {
+  if (value is bool) {
+    return value;
+  }
+  String string = toLowerCase(value);
+  if (string == 'true') {
+    return true;
+  }
+  if (string == 'false') {
+    return false;
+  }
+  return null;
+}
+
+/**
+ * Safely convert this [value] to lower case, returning `null` if [value] is
+ * null.
+ */
+String toLowerCase(Object value) => value?.toString()?.toLowerCase();
+
+/**
+ * Safely convert this [value] to upper case, returning `null` if [value] is
+ * null.
+ */
+String toUpperCase(Object value) => value?.toString()?.toUpperCase();
+
 /**
  * Jenkins hash function, optimized for small integers.
  * Borrowed from sdk/lib/math/jenkins_smi_hash.dart.
@@ -31,6 +74,26 @@ class JenkinsSmiHash {
       finish(combine(combine(combine(combine(0, a), b), c), d));
 }
 
+/**
+ * A simple limited queue.
+ */
+class LimitedQueue<E> extends ListQueue<E> {
+  final int limit;
+
+  /**
+   * Create a queue with [limit] items.
+   */
+  LimitedQueue(this.limit);
+
+  @override
+  void add(E o) {
+    super.add(o);
+    while (length > limit) {
+      remove(first);
+    }
+  }
+}
+
 /**
  * Helper class for gathering performance statistics.  This class is modeled on
  * the UserTag class in dart:developer so that it can interoperate easily with
@@ -82,7 +145,7 @@ abstract class PerformanceTag {
    * Make this the current tag for the isolate, run [f], and restore the
    * previous tag. Returns the result of invoking [f].
    */
-  makeCurrentWhile(f());
+  dynamic/*=E*/ makeCurrentWhile/*<E>*/(dynamic/*=E*/ f());
 
   /**
    * Reset the total time tracked by all [PerformanceTag]s to zero.
@@ -143,7 +206,7 @@ class _PerformanceTagImpl implements PerformanceTag {
     return previous;
   }
 
-  makeCurrentWhile(f()) {
+  dynamic/*=E*/ makeCurrentWhile/*<E>*/(dynamic/*=E*/ f()) {
     PerformanceTag prevTag = makeCurrent();
     try {
       return f();