Ensure scheduled_test directory entries are sorted when displaying error messages.

pkg/scheduled_test/lib/src/descriptor/utils.dart

Index: pkg/scheduled_test/lib/src/descriptor/utils.dart
diff --git a/pkg/scheduled_test/lib/src/descriptor/utils.dart b/pkg/scheduled_test/lib/src/descriptor/utils.dart
index f0d594cc429e5a6787bca9f68c81ce67c4c8cd33..04d2e62bcdf89a7409b3aee2a43bdb51a6f28ae5 100644
--- a/pkg/scheduled_test/lib/src/descriptor/utils.dart
+++ b/pkg/scheduled_test/lib/src/descriptor/utils.dart
@@ -29,6 +29,7 @@ String entryMatchingPattern(String type, String parent, Pattern pattern) {
       .map((entry) => entry is File ? entry.fullPathSync() : entry.path)
       .where((entry) => entry.contains(pattern))
       .toList();
+  matchingEntries.sort();
 
   if (matchingEntries.length == 0) {
     throw "No entry found in '$parent' matching ${describePattern(pattern)}.";