Adding a function to a suite fails at runtime

[waywardmonkeys]

If you add a function to a suite as:

define suite some-suite ()
  test some-function;
end suite;

There are no compile time notices, but it fails at runtime with:

{<simple-method>: ??? ()} is not of type {<class>: <component>}
{function  0x60e1c8} is not of type {class <component> 0x113d58}