Fix RawFunctionTypeNamed command

Author: eernstg

specification/dart.sty

@@ -412,7 +412,7 @@
 % the spacer argument.
 \newcommand{\RawFunctionTypeNamed}[9]{%
   \RawFunctionType{#1}{#2}{#3}{#4}{%
-    \FunctionTypeNamedParameters{#5}{#6}{#7}{#8}{r}}}
+    \FunctionTypeNamedParameters{#5}{#6}{#7}{#8}{#9}}}
 
 % A variant of \FunctionTypeNamed that uses the standard symbols,
 % that is, a function type with positional optional parameters which