plpgsql regress tests seem a tad out of date ... repair bit rot.

src/pl/plpgsql/test/expected/tables.out

src/pl/plpgsql/test/expected/test.out

src/pl/plpgsql/test/expected/triggers.out

src/pl/plpgsql/test/expected/views.out

src/pl/plpgsql/test/mklang.sql

src/pl/plpgsql/test/runtest

src/pl/plpgsql/test/triggers.sql