Extend tramp-tests.el for other host name syntax and file name syntax

Extend tramp-tests.el for other host name syntax and file name syntax

* test/lisp/net/tramp-tests.el (inhibit-message)
(connection-local-criteria-alist)
(connection-local-profile-alist, async-shell-command-width): Declare.
(tramp-test01-file-name-syntax)
(tramp-test02-file-name-dissect): Set syntax to `default'.
(tramp-test03-file-name-defaults)
(tramp-test03-file-name-host-rules)
(tramp-test03-file-name-method-rules)
(tramp-test04-substitute-in-file-name)
(tramp-test05-expand-file-name)
(tramp-test06-directory-file-name, tramp-test44-auto-load):
Skip unless syntax is `default'.
(tramp-test06-directory-file-name, tramp-test10-write-region)
(tramp-test17-dired-with-wildcards)
(tramp-test26-file-name-completion): Handle IPv6 host names.
(tramp-test21-file-links): Support all syntaxes.
(tramp-test30-make-process, tramp-test45-unload):
Suppress compiler warnings.
(tramp-test37-make-auto-save-file-name): Skip for `separate' syntax.