The `die()` function triggers a user defined runtime exception when invoked,
using the given value as exception message.

The given message value is converted to a string internally if it is not a
string already. If no message argument is given or if the message argument
is `null`, the default message is `Died`.

The function does not return.

-- Testcase --
{%
	print("Before invoking die()\n");

	die("An exception!");

	print("After invoking die()\n");
%}
-- End --

-- Expect stdout --
Before invoking die()
-- End --

-- Expect stderr --
An exception!
In line 4, byte 21:

 `    die("An exception!");`
  Near here -------------^


-- End --


-- Testcase --
{%
	die();
%}
-- End --

-- Expect stderr --
Died
In line 2, byte 6:

 `    die();`
          ^-- Near here


-- End --