std.json API broken without notice

[Andrei Alexandrescu]

On 3/9/14, 6:23 AM, Andrej Mitrovic wrote:
> On 3/9/14, Vladimir Panteleev <vladimir at thecybershadow.net> wrote:
>> I don't think it was an intentional change, rather a mundane
>> regression. Could you post the affected code?
>
> Breaking code wasn't intended.
>
> On 3/9/14, Andrei Alexandrescu <SeeWebsiteForEmail at erdani.org> wrote:
>> I wonder how we can improve the process to avoid such issues in the future.
>
> The obvious answer is to have proper unittests. If the API broke, the
> existing tests should have caught this. But the tests weren't touched
> in the pull request, only new ones were added. What exactly broke
> though?

Apparently direct use of the untagged union elements was not being 
unittested.

Andrei