Use precompiled dependencies in pub.

sdk/lib/_internal/pub_generated/lib/src/utils.dart

Index: sdk/lib/_internal/pub_generated/lib/src/utils.dart
diff --git a/sdk/lib/_internal/pub_generated/lib/src/utils.dart b/sdk/lib/_internal/pub_generated/lib/src/utils.dart
index dcaf04417d560df5efb84f6c588b3bcf6a077584..4ae3120cd576d1181a09e03d831858e366959c03 100644
--- a/sdk/lib/_internal/pub_generated/lib/src/utils.dart
+++ b/sdk/lib/_internal/pub_generated/lib/src/utils.dart
@@ -102,6 +102,11 @@ String padRight(String source, int length) {
   }
   return result.toString();
 }
+String namedSequence(String name, Iterable iter, [String plural]) {
+  if (iter.length == 1) return "$name ${iter.single}";
+  if (plural == null) plural = "${name}s";
+  return "$plural ${toSentence(iter)}";
+}
 String toSentence(Iterable iter) {
   if (iter.length == 1) return iter.first.toString();
   return iter.take(iter.length - 1).join(", ") + " and ${iter.last}";
@@ -156,6 +161,11 @@ Set setMinus(Iterable minuend, Iterable subtrahend) {
   minuendSet.removeAll(subtrahend);
   return minuendSet;
 }
+bool overlaps(Set set1, Set set2) {
+  var smaller = set1.length > set2.length ? set1 : set2;
+  var larger = smaller == set1 ? set2 : set1;
+  return smaller.any(larger.contains);
+}
 List ordered(Iterable<Comparable> iter) {
   var list = iter.toList();
   list.sort();