contract C {
  function f() public pure {
    abi.decode();
    abi.decode(msg.data);
    abi.decode(msg.data, uint, uint);
  }
}
// ----
// TypeError: (46-58): This function takes two arguments, but 0 were provided.
// TypeError: (64-84): This function takes two arguments, but 1 were provided.
// TypeError: (90-122): This function takes two arguments, but 3 were provided.
// TypeError: (111-115): The second argument to "abi.decode" has to be a tuple of types.