Roll to pickup pool changes

packages/matcher/test/core_matchers_test.dart

Index: packages/matcher/test/core_matchers_test.dart
diff --git a/packages/matcher/test/core_matchers_test.dart b/packages/matcher/test/core_matchers_test.dart
index 04cc111c1abfd099514ae4aac9baab032a831f59..8261c6f238746f800e1c9aaded2022d69e38cdb6 100644
--- a/packages/matcher/test/core_matchers_test.dart
+++ b/packages/matcher/test/core_matchers_test.dart
@@ -250,8 +250,6 @@ void main() {
           contains("Expected: feature {1: 'a'} "),
           contains("Actual: 'a' "),
           contains("Which: threw 'Exception: bang' "),
-          contains("test/core_matchers_test.dart "),
-          contains("package:test ")
         ]));
   });
 }