Monadic panic

Raises panic exception

Syntax: panic <x>; panic [<x>]

o)panic 1
** runtime error: `(apply_dyad;put;#1;(apply_monad;eval;(apply_dyad;parse;"REPL";#0)))`:
Undefined panic
o)panic "panic"
** runtime error: `(apply_dyad;put;#1;(apply_monad;eval;(apply_dyad;parse;"REPL";#0)))`:
panic
o)@[{panic["test panic"]};();{key x}]
`kind`call`message`stack`mark
o)@[{panic["test panic"]};();{x`kind`message}]
`runtime
"test panic"
o)