long output in erorr message involving syntax object can be confusing

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Run the program:

#!r6rs
(import (rnrs))
(define-syntax long-output
  (lambda (stx)
    (write (cdr #'(1 2 3)))
    #f))
(long-output)

What is the expected output? What do you see instead?
An error with reasonable length.  A very long output (at first I tried to paste 
the whole output here, but even Google code thinks that it is too long and 
forbade me from posting such a long comment).

What version of the product are you using? On what operating system?
Mosh R6RS scheme interpreter, version 0.2.7 (mosh-0.2.7-369-g506cd1f 2011/07/11 
04:30:47).  i686-pc-linux-gnu.

Original issue reported on code.google.com by mrc....@gmail.com on 11 Jul 2011 at 9:21

[GoogleCodeExporter]

Original comment by hige...@gmail.com on 11 Jul 2011 at 9:54

• Changed state: Accepted

[GoogleCodeExporter]

Original comment by oku...@gmail.com on 5 Oct 2014 at 12:01

• Added labels: Component-Psyntax