Bugfix: ExPolygon::contains_line() was called with a Polyline object but didn't throw any error. Thanks ledvinap #1945

lib/Slic3r/Line.pm

@@ -18,4 +18,9 @@ sub grow {
     return Slic3r::Polyline->new(@$self)->grow(@_);
 }
 
+sub as_polyline {
+    my ($self) = @_;
+    return Slic3r::Polyline->new(@$self);
+}
+
 1;