pgsql: Expand the regression tests for PL/Tcl.

Expand the regression tests for PL/Tcl.

This raises the test coverage (by line count) in pltcl.c from about 70%
to 86%.

Karl Lehenbauer and Jim Nasby

Discussion: /messages/by-id/92a1670d-21b6-8f03-9c13-e4fb2207ab7b@BlueTreble.com

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/961bed0208912a929a47c5a30190ff76748f3a03

Modified Files
--------------
src/pl/tcl/expected/pltcl_queries.out | 336 ++++++++++++++++++++++++++++++++--
src/pl/tcl/expected/pltcl_setup.out | 150 +++++++++++----
src/pl/tcl/sql/pltcl_queries.sql | 112 ++++++++++--
src/pl/tcl/sql/pltcl_setup.sql | 145 ++++++++++++---
4 files changed, 654 insertions(+), 89 deletions(-)

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