[Vala] cairo example compile fail

["Campbell Barton" <ideasman42 gmail com>]

Hi, just tried compiling  http://live.gnome.org/Vala/CairoSample
./valac test.vala --pkg gtk+-2.0 --pkg cairo -o cairo-demo

/media/data/render/vala/bin/test.vala:33.13-33.24: error: Too many
arguments, method `Cairo.Context.set_dash' does not take 3 arguments
/media/data/render/vala/bin/test.vala:36.13-36.24: error: Too many
arguments, method `Cairo.Context.set_dash' does not take 3 arguments
Compilation failed: 2 error(s), 0 warning(s)