pgsql: Track LLVM 14 API changes, up to 2022-01-30.

Track LLVM 14 API changes, up to 2022-01-30.

Tested with LLVM 11, LLVM 13 and LLVM's main branch at commit
8d8fce87bbd5.  There are still some deprecation warnings that will need
to be sorted out, but this may be enough to turn "seawasp" green again.

Like commit e6a76002, done on master only for now.

Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKG%2B3Ac3He9_SpJcxeiiVknbcES1tbZEkH9sRBdJFGj8K5Q%40mail.gmail.com

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/807fee1a39de6bb8184082012e643951abb9ad1d

Modified Files
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src/backend/jit/llvm/llvmjit_error.cpp | 35 +++++++++++++++++++++++++++++-----
1 file changed, 30 insertions(+), 5 deletions(-)