* tests/atgeneral.m4 (AT_INIT): Initialize AT_banner_ordinal.
Execute the epilogue of the tests only if a test was run.
Don't built the value of `at_tests_all' by a for loop: expand
AT_TESTS_ALL.
(AT_SETUP): Build AT_TESTS_ALL.
(AT_BANNER): New.
Adjust all the former banners to use it.
(AT_CHECK): Don't trace the decoding of $?.
* tests/atgeneral.m4 (_m4_divert(SUITE_PRO)): Remove, replaced
by...
(_m4_divert(DEFAULT), _m4_divert(OPTIONS), _m4_divert(HELP))
(_m4_divert(SETUP)): these.
(_m4_divert(SUITE_EPI)): Rename as...
(_m4_divert(TAIL)): this.
(AT_INIT): Adjust to the new diversions.
Insert the magic number.
Accept test groups as cli argument.
List the test groups.
Rename TESTS, test, and tests as at_tests_all, at_test, and
at_tests.
Have the debug scripts pass options to test suite.
Remove their banner.
* tests/atspecific.m4: Don't divert to 0.
* suite.at: Don't insert the magic number.
before high level ones.
* tests/semantics.at (AC_CONFIG_FILES, HEADERS, LINKS and COMMANDS):
(missing templates): Move to...
* tests/torture.at: here.
Reorder the file so that the torture test is last.
* tests/semantics.at (AC_TRY_LINK_FUNC, AC_PROG_CPP with warnings)
(AC_PROG_CPP without warnings): Move to...
* tests/compile.at: here, new file.
* tests/suite.at: Run `torture' and then `compile' before
`semantics'.
