$string must escape special chars in field names

[aeberhart]

Input

$string({"te\nst":"te\nst"})

Output

{"te
st":"te\nst"}

Expected

{"te\nst":"te\nst"}

[aeberhart]

re-applying $eval() to the result of $string manages to parse the illegal JSON this expression causes an error though:

{"te\nst":"te\nst"} ~> |$|{}| Expected valid string character at 1:5