pgsql: Improve speed of make check-world

Improve speed of make check-world

Before, make check-world would create a new temporary installation for
each test suite, which is slow and wasteful.  Instead, we now create one
test installation that is used by all test suites that are part of a
make run.

The management of the temporary installation is removed from pg_regress
and handled in the makefiles.  This allows for better control, and
unifies the code with that of test suites not run through pg_regress.

review and msvc support by Michael Paquier <michael.paquier@gmail.com>

more review by Fabien Coelho <coelho@cri.ensmp.fr>

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/dcae5faccab64776376d354decda0017c648bb53

Modified Files
--------------
.gitignore                         |    1 +
GNUmakefile.in                     |    1 +
contrib/earthdistance/Makefile     |    2 +-
contrib/test_decoding/Makefile     |   16 ++-
src/Makefile.global.in             |   30 +++--
src/bin/pg_upgrade/test.sh         |    2 +-
src/interfaces/ecpg/test/Makefile  |   10 +-
src/makefiles/pgxs.mk              |    7 +-
src/pl/plperl/GNUmakefile          |    2 -
src/pl/plpython/Makefile           |    3 -
src/pl/tcl/Makefile                |    2 -
src/test/isolation/Makefile        |   15 +--
src/test/regress/GNUmakefile       |    4 -
src/test/regress/pg_regress.c      |  234 +++++++++---------------------------
src/test/regress/pg_regress.h      |    6 -
src/test/regress/pg_regress_main.c |    4 +-
src/tools/msvc/vcregress.pl        |   67 +++++++----
17 files changed, 145 insertions(+), 261 deletions(-)