svg and json tests: fixing nested test calls

tests/json/json_test.dart

Index: tests/json/json_test.dart
diff --git a/tests/json/json_test.dart b/tests/json/json_test.dart
index af68004b36f42698dc8a4261199ff05e5f401e1f..ca214515907ca81ae7ce842e53a0421ce08f1011 100644
--- a/tests/json/json_test.dart
+++ b/tests/json/json_test.dart
@@ -71,6 +71,7 @@ main() {
                    '"z":"hi","w":{"c":null,"d":true}, "v":null}'),
         equals({"x": {"a":3, "b": -4.5}, "y":[{}],
                    "z":"hi","w":{"c":null,"d":true}, "v":null}));
+  });
 
   test('stringify', () {
     // Scalars.
@@ -134,7 +135,6 @@ main() {
      * we try to stringify something that cannot be converted to json.
      */
     expect(() => json.stringify(new TestClass()), throws);
-    });
   });
 }