test X::Constructor::Positional

Author: moritz

S32-exceptions/misc.t

@@ -159,5 +159,6 @@ throws_like 'Date.new("2012-02-30")', X::OutOfRange,
     range => Range, message => rx/<<1\.\.29>>/;
 
 throws_like 'sub f() { }; &f.unwrap("foo")', X::Routine::Unwrap;
+throws_like 'Mu.new(1)', X::Constructor::Positional;
 
 done;