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packages/dart_style/test/regression/0300/0389.unit

Index: packages/dart_style/test/regression/0300/0389.unit
diff --git a/packages/dart_style/test/regression/0300/0389.unit b/packages/dart_style/test/regression/0300/0389.unit
new file mode 100644
index 0000000000000000000000000000000000000000..0f2c34624c121d9e0163020284a37242f6178df5
--- /dev/null
+++ b/packages/dart_style/test/regression/0300/0389.unit
@@ -0,0 +1,21 @@
+>>>
+class SpongePublishers extends ResultPublishers {
+  SpongePublishers(
+      [FilenameConvention _filenameConvention = const DefaultFilenameConvention()])
+      : super(<ResultPublisher>[
+          new RedirectPublisher(),
+          new ImagePublisher(_filenameConvention),
+          new ResultPropertyPublisher(_filenameConvention)
+        ]);
+}
+<<<
+class SpongePublishers extends ResultPublishers {
+  SpongePublishers(
+      [FilenameConvention _filenameConvention =
+          const DefaultFilenameConvention()])
+      : super(<ResultPublisher>[
+          new RedirectPublisher(),
+          new ImagePublisher(_filenameConvention),
+          new ResultPropertyPublisher(_filenameConvention)
+        ]);
+}