Add regression tests for bugs that are working now.

test/regression/204.stmt

Index: test/regression/204.stmt
diff --git a/test/regression/204.stmt b/test/regression/204.stmt
new file mode 100644
index 0000000000000000000000000000000000000000..50986ef6d3a65aab78668709e04d787aa0d7357c
--- /dev/null
+++ b/test/regression/204.stmt
@@ -0,0 +1,18 @@
+>>>
+var serverDuration = new Duration(
+    microseconds: response.requestProcessingTimeUsec.toInt())
+  .inMilliseconds.toString();
+<<<
+var serverDuration =
+    new Duration(microseconds: response.requestProcessingTimeUsec.toInt())
+        .inMilliseconds
+        .toString();
+>>> (indent 8)
+        var serverDuration = new Duration(
+            microseconds: response.requestProcessingTimeUsec.toInt())
+          .inMilliseconds.toString();
+<<<
+        var serverDuration = new Duration(
+                microseconds: response.requestProcessingTimeUsec.toInt())
+            .inMilliseconds
+            .toString();