Switch from try-catch test block to low-level call and assert the exact output

[aaronbuchwald]

Follow up from #601 (comment)

Using a try-catch block does not check the exact reason for failure. To be more specific about the expected behavior, we can use a low-level call that returns the return data and a boolean to indicate success/failure directly.

(bool success, bytes memory ret) = address(c).call(abi.encodeWithSignature("foo()"));
require(!success);
require(ret.length == 0, "ret length unexpected length");