Roll Observatory deps (charted -> ^0.3.0)

packages/dart_style/test/regression/0400/0437.unit

Index: packages/dart_style/test/regression/0400/0437.unit
diff --git a/packages/dart_style/test/regression/0400/0437.unit b/packages/dart_style/test/regression/0400/0437.unit
new file mode 100644
index 0000000000000000000000000000000000000000..3016314a639da3d683ac02717c643e64141fa1cf
--- /dev/null
+++ b/packages/dart_style/test/regression/0400/0437.unit
@@ -0,0 +1,22 @@
+>>>
+class Foo {
+  static ExportElementImpl exportFor(LibraryElement exportedLibrary,
+      [List<NamespaceCombinator> combinators = NamespaceCombinator
+          .EMPTY_LIST]) {
+    ExportElementImpl spec = new ExportElementImpl(-1);
+    spec.exportedLibrary = exportedLibrary;
+    spec.combinators = combinators;
+    return spec;
+  }
+}
+<<<
+class Foo {
+  static ExportElementImpl exportFor(LibraryElement exportedLibrary,
+      [List<NamespaceCombinator> combinators =
+          NamespaceCombinator.EMPTY_LIST]) {
+    ExportElementImpl spec = new ExportElementImpl(-1);
+    spec.exportedLibrary = exportedLibrary;
+    spec.combinators = combinators;
+    return spec;
+  }
+}