bug#25384: Compiler mis-identifies source location of erroneous parenthesis pairs

[Mike Gran <spk121@yahoo.com>]

In guile 2.0.13, both the compiler and the interpreter
fail to identify the source location of errors of the following
form.  It instead reports the errors as occurring in boot-9.scm.
(unknown-func unknown-symbol () #t)
GUILD COMPILE ERROR
;;; WARNING: compilation of /home/mike/projects/bug1.scm failed: 
;;; ERROR: Syntax error: 
;;; unknown location: unexpected syntax in form () 
ice-9/boot-9.scm:703:29: In procedure map: 
ice-9/boot-9.scm:703:29: Syntax error: 
unknown location: unexpected syntax in form () 

INTERPRETER ERROR
ice-9/boot-9.scm:703:29: In procedure map: 
ice-9/boot-9.scm:703:29: Syntax error: 
unknown location: unexpected syntax in form () 

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue. 
scheme@(guile-user) [1]> ,bt 
4 (primitive-load "/home/mike/projects/bug1.scm") 
In ice-9/eval.scm: 
505:12  3 (#<procedure 55fe958796c0 at ice-9/eval.scm:499:4 ...> #) 
In ice-9/psyntax.scm: 
1116:54  2 (expand-top-sequence ((unknownfunc unknownsymbol ...)) ...) 
1346:11  1 (#<procedure 55fe95f48910 (e0 e1)> unknownfunc (# # #t)) 
In ice-9/boot-9.scm: 
703:29  0 (map #<procedure 55fe95f87040 at ice-9/psyntax.scm...> #) 

Thanks,
Mike