* automated/tramp-tests.el (tramp-copy-size-limit): Set to nil.

* automated/tramp-tests.el (tramp-copy-size-limit): Set to nil.
(tramp--test-make-temp-name): Optional argument LOCAL.
(tramp--instrument-test-case): Show messages.  Catch also `quit'.
(tramp-test10-write-region): No special test for out-of-band copy
needed anymore.
(tramp-test11-copy-file, tramp-test12-rename-file)
(tramp-test21-file-links): Extend tests.
(tramp-test20-file-modes): More robust check for user "root".
(tramp--test-check-files): New defun.
(tramp-test30-special-characters, tramp-test33-recursive-load)
(tramp-test34-unload): New tests.
(tramp-test31-utf8, tramp-test32-asynchronous-requests):  Rename.