pgsql: Enable settings used in TAP tests for MSVC builds

Enable settings used in TAP tests for MSVC builds

Certain settings from configuration or the Makefile infrastructure are
used by the TAP tests, but were not being set up by vcregress.pl. This
remedies those omissions. This should increase test coverage, especially
on the buildfarm.

Reviewed by Noah Misch

Discussion: /messages/by-id/17093da5-e40d-8335-d53a-2bd803fc38b0@dunslane.net

Backpatch to all live branches.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/edc2332550b2343bc9378540e11c8aa71f513a63

Modified Files
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src/tools/msvc/vcregress.pl | 15 +++++++++++++++
1 file changed, 15 insertions(+)