solidity/test/libsolidity/syntaxTests/parsing/address_payable_function_type.sol

contract C {
    function (address payable) view internal returns (address payable) f;
    function g(function (address payable) payable external returns (address payable)) public payable returns (function (address payable) payable external returns (address payable)) {
        function (address payable) payable external returns (address payable) h; h;
    }
}