; Throw strings as the values for 'eshell-incomplete'

; Throw strings as the values for 'eshell-incomplete'

This lets us distinguish between cases like "'foo" and "$'foo".

* lisp/eshell/em-cmpl.el (eshell-complete-parse-arguments): Use
strings when checking the delimiter.

* lisp/eshell/em-glob.el (eshell-parse-glob-chars):
* lisp/eshell/em-pred.el (eshell-parse-arg-modifier):
* lisp/eshell/esh-arg.el (eshell-parse-backslash)
(eshell-parse-literal-quote, eshell-parse-double-quote)
(eshell-parse-special-reference):
* lisp/eshell/esh-cmd.el (eshell-parse-subcommand-argument)
(eshell-parse-lisp-argument):
* lisp/eshell/esh-var (eshell-parse-variable-ref)
(eshell-parse-indices): Throw strings instead of characters.

* lisp/eshell/esh-mode.el (eshell-parse-command-input): Print
delimiter as a string.