pgsql: Don't rely on llvm::make_unique.

Don't rely on llvm::make_unique.

Bleeding-edge LLVM has stopped supplying replacements for various
C++14 library features, for people on older C++ versions.  Since we're
not ready to require C++14 yet, just use plain old new instead of
make_unique.  As revealed by buildfarm animal seawasp.

Back-patch to 11.

Reviewed-by: Andres Freund
Discussion: https://postgr.es/m/CA%2BhUKGJWG7unNqmkxg7nC5o3o-0p2XP6co4r%3D9epqYMm8UY4Mw%40mail.gmail.com

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/54ff1c34f11b3f899be66fa55f85dbace83be741

Modified Files
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src/backend/jit/llvm/llvmjit_inline.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)