Quieten ruby-mode-tests.el compilation

Quieten ruby-mode-tests.el compilation

* test/automated/ruby-mode-tests.el (ruby-deftest-move-to-block):
Goto point-min.
(works-on-do, zero-is-noop, ok-with-three, ok-with-minus-two)
(ruby-move-to-block-skips-percent-literal)
(ruby-move-to-block-skips-heredoc)
(ruby-move-to-block-moves-from-else-to-if)
(ruby-beginning-of-defun-does-not-fold-case)
(ruby-end-of-defun-skips-to-next-line-after-the-method):
Replace goto-line with forward-line/goto-char.
(ruby-move-to-block-does-not-fold-case): Remove unneeded end-of-buffer.