\tuplet and \tupletSpan to replace \times and tupletSpannerDuration

input/regression/tuplet-bracket-cross-staff.ly

-\version "2.17.6"
+\version "2.17.11"
 
 \paper {
   ragged-right = ##t
 }
 
 \header {
   texidoc = "Cross-staff tuplets are drawn correctly,
 even across multiple staves."
 }
 
 \layout {
   \context {
     \Score
     \override TupletBracket.bracket-visibility = ##t
   }
 }
 
 voice = {
-  \times 2/3 { b8 \change Staff=I c' d' }
-  \times 2/3 { d' c' \change Staff=II b }
-  \times 2/3 { \change Staff=III c,
+  \tuplet 3/2 { b8 \change Staff=I c' d' }
+  \tuplet 3/2 { d' c' \change Staff=II b }
+  \tuplet 3/2 { \change Staff=III c,
                \change Staff=II b
                \change Staff=I c' }
-  \times 2/3 { c'[ \change Staff=II b] c }
+  \tuplet 3/2 { c'[ \change Staff=II b] c }
 }
 
 \score {
   \new PianoStaff
   <<
     \new Staff = "I" { s1 }
     \new Staff = "II" { \clef bass \voice }
     \new Staff = "III" { \clef bass s1 }
   >>
 }