Error about constructor calls in loops/labels, but there are no loops and labels?

[Steven Schveighoffer]

On 5/17/18 3:55 PM, DarkHole wrote:
> This strange code - https://run.dlang.io/is/BKgv49 - fails with error 
> "Error: constructor calls not allowed in loops or after labels", but 
> there is no loops or labels.

Switch cases are labels.

-Steve