[Git][debian-gis-team/postgis][experimental] 2 commits: debian/tests: Run core and sfcgal regression tests.

[Christoph Berg]

Re: Bas Couwenberg 2019-07-02 <b7d72c3b5b19736916d1b87b667ce7f5 at xs4all.nl>
> Excellent. Thanks for the update, and your work on the CI configuration.

Fwiw, the tests are passing now.

I disabled reprotest because there's still the issue that clang (used
for byte-compiling everything into .bc files for JIT query execution)
still doesn't understand -ffile-prefix-map.
https://reviews.llvm.org/D49466 is making sloooow progress.

Christoph