* lisp/progmodes/ruby-mode.el (ruby-smie--args-separator-p): Be more

* lisp/progmodes/ruby-mode.el (ruby-smie--args-separator-p): Be more
specific in what the first arg can be: a non-keyword word,
string/regexp/percent literal opener, opening paren, or unary
operator followed directly by word.

* test/automated/ruby-mode-tests.el (ruby-toggle-block-to-brace): Fix
the test, in respect to adding the space after the curly.