pgsql: Inline hot path of slot_getsomeattrs().

Inline hot path of slot_getsomeattrs().

This yields a minor speedup, which roughly balances the loss from the
upcoming introduction of callbacks to do some operations on slots.

Author: Andres Freund
Discussion: https://postgr.es/m/20181105210039.hh4vvi4vwoq5ba2q@alap3.anarazel.de

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a7aa608e0f5910f9c73a530a66142c08e3d9043a

Modified Files
--------------
src/backend/executor/execExprInterp.c |  1 -
src/backend/executor/execTuples.c     | 32 ++++++++++++++------------------
src/backend/jit/llvm/llvmjit.c        |  4 ++--
src/backend/jit/llvm/llvmjit_expr.c   |  2 +-
src/backend/jit/llvm/llvmjit_types.c  |  2 +-
src/include/executor/tuptable.h       | 13 ++++++++++++-
src/include/jit/llvmjit.h             |  2 +-
7 files changed, 31 insertions(+), 25 deletions(-)