overlay face property not used for after-string property

[Joe Wells]

BUG:  An overlay's face property is applied to its before-string
and display properties, but not to its after-string property.

Reproduce with this expression (see below for definition of
test-in-fresh-buffer-and-window):

  (test-in-fresh-buffer-and-window
   (insert "123")
   (let ((o (make-overlay 2 3)))
     (overlay-put o 'before-string "B")
     (overlay-put o 'after-string "A")
     (overlay-put o 'display "D")
     (overlay-put o 'face 'highlight)))

This displays “1BDA3”.  The “BDA” portion should be displayed
with face “highlight”, which means that the background should be
colored “darkseagreen2”.  However, only the “BD” portion is
displayed with face “highlight” and the “A” portion is wrongly
not displayed with any special face.

I'm assuming the following macro definition in my reproduction
code above:

  (defmacro test-in-fresh-buffer-and-window (&rest body)
    `(progn
       (delete-other-windows)
       (kill-buffer (get-buffer-create "xyzzy"))
       (let ((xyzzy-buf (get-buffer-create "xyzzy")))
         (set-buffer xyzzy-buf)
         (display-buffer xyzzy-buf)
         ,@body
         )))

I hope this bug report is helpful.

Joe

======================================================================
In GNU Emacs 22.1.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2007-06-27 on artemis
Windowing system distributor `The X.Org Foundation', version 11.0.70000000
configured using `configure  '--prefix=/home/jbw/local2' '--enable-debug' 
'--disable-nls' '--with-x-toolkit=gtk' 'CFLAGS=-O0 -g3 -ggdb''

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