Roll Observatory packages and add a roll script

packages/dart_style/test/regression/0200/0224.stmt

Index: packages/dart_style/test/regression/0200/0224.stmt
diff --git a/packages/dart_style/test/regression/0200/0224.stmt b/packages/dart_style/test/regression/0200/0224.stmt
new file mode 100644
index 0000000000000000000000000000000000000000..11c87264604253fb4cf1ca372e3333deffd3f6b8
--- /dev/null
+++ b/packages/dart_style/test/regression/0200/0224.stmt
@@ -0,0 +1,59 @@
+>>> (indent 4)
+    return doughnutFryer.start()
+        .then((_) => _frostingGlazer.start())
+        .then((_) =>
+            Future.wait([
+              _conveyorBelts.start(),
+              sprinkleSprinkler.start(),
+              sauceDripper.start()]))
+        .catchError(cannotGetConveyorBeltRunning)
+        .then((_) => tellEveryoneDonutsAreJustAboutDone())
+        .then((_) =>
+            Future.wait([
+              croissantFactory.start(),
+              _giantBakingOvens.start(),
+              butterbutterer.start()])
+            .catchError(_handleBakingFailures)
+            .timeout(scriptLoadingTimeout, onTimeout: _handleBakingFailures)
+            .catchError(cannotGetConveyorBeltRunning))
+        .catchError(cannotGetConveyorBeltRunning)
+        .then((_) {
+          _logger.info("Let's eat!");
+        });
+<<<
+    return doughnutFryer
+        .start()
+        .then((_) => _frostingGlazer.start())
+        .then((_) => Future.wait([
+              _conveyorBelts.start(),
+              sprinkleSprinkler.start(),
+              sauceDripper.start()
+            ]))
+        .catchError(cannotGetConveyorBeltRunning)
+        .then((_) => tellEveryoneDonutsAreJustAboutDone())
+        .then((_) => Future.wait([
+              croissantFactory.start(),
+              _giantBakingOvens.start(),
+              butterbutterer.start()
+            ])
+                .catchError(_handleBakingFailures)
+                .timeout(scriptLoadingTimeout, onTimeout: _handleBakingFailures)
+                .catchError(cannotGetConveyorBeltRunning))
+        .catchError(cannotGetConveyorBeltRunning)
+        .then((_) {
+      _logger.info("Let's eat!");
+    });
+>>> (indent 22)
+                      someVeryLongFutureWithManyChars().then((foo) {
+                        doAThing();
+                      }).catchError((e) {
+                        doAnotherThing;
+                      }, test: someTestWithSoManyConditions(e) && itHasToWrap(e));
+<<<
+                      someVeryLongFutureWithManyChars().then((foo) {
+                        doAThing();
+                      }).catchError((e) {
+                        doAnotherThing;
+                      },
+                          test: someTestWithSoManyConditions(e) &&
+                              itHasToWrap(e));