* Make `decl_runtime_apis!` fail on methods with default implementation
Runtime api functions are not allowed to have default implementations.
This fixes this by throwing an error when we detect such a function.
* Update primitives/api/proc-macro/src/decl_runtime_apis.rs
Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
* Update primitives/api/test/tests/ui/no_default_implementation.stderr
Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
Bastian Köcher