[Issue 10693] cartesianProduct with over 7 ranges causes segfault at compile time

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=10693

--- Comment #8 from hsteoh at quickfur.ath.cx ---
Latest git HEAD no longer segfaults at compile-time (new cartesianProduct
implementation no longer uses exponential number of templates); but now a new
problem is exposed: an empty cartesianProduct triggers a range error at
runtime. Looks like a missing .empty check somewhere...

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