The validation was introduced in 3a63bf02998f7b5e040a4b87e049d03ddd144f74 without strict validation of functions, e. g. all function types were allowed. Now the validation only allows `const fn`s.
The validation was introduced in 3a63bf02998f7b5e040a4b87e049d03ddd144f74 without strict validation of functions, e. g. all function types were allowed. Now the validation only allows `const fn`s.