fix

plab/flatten/function.go

@@ -65,6 +65,10 @@ func InlineAllFuncs(str string) (string, error) {
 				argStop++
 			}
 
+			if argsStart == argStop {
+				argStop++
+			}
+
 			inlined := f.Inline(args...)
 			soFar.WriteString("\n")
 			soFar.WriteString(inlined)