Consolidate the image_cache to the terminal struct.

* termhooks.h (P_): Remove redundant def.
(struct terminal): New field `image_cache'.
* frame.h (FRAME_IMAGE_CACHE): New macro.  Use it everywhere in place
of FRAME_X_IMAGE_CACHE.
* xterm.h (struct x_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* w32term.h (struct w32_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* macterm.h (struct mac_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* xterm.c (x_term_init):
* w32term.c (w32_term_init):
* macterm.c (mac_term_init): Set the image_cache in the terminal.
* dispextern.h (clear_image_cache, forall_images_in_image_cache):
Remove declarations.
(clear_image_caches, mark_image_cache): New declarations.
* xfaces.c (clear_face_cache):
* xdisp.c (redisplay_internal): Use clear_image_caches.
* image.c (clear_image_cache): Don't check that a frame is on
a window-system before checking if it shares the same cache.
(clear_image_caches): New function.
(Fclear_image_cache): Use it.
(mark_image): Move from allo.c.
(mark_image_cache): Move from alloc.c and forall_images_in_image_cache.
* alloc.c (mark_image, mark_image_cache): Move to image.c.
(mark_object): Don't call mark_image_cache for frames.
(mark_terminals): Call mark_image_cache.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/macfns.c b/src/macfns.c
index aab91cf41f4..9e471c6c588 100644
--- a/src/macfns.c
+++ b/src/macfns.c
@@ -2608,7 +2608,7 @@ This function is an internal primitive--use `make-frame' instead.  */)
 
   /* With FRAME_MAC_DISPLAY_INFO set up, this unwind-protect is safe.  */
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
   FRAME_KBOARD (f) = kb;
@@ -3846,7 +3846,7 @@ x_create_tip_frame (dpyinfo, parms, text)
   f->icon_name = Qnil;
 /*   FRAME_X_DISPLAY_INFO (f) = dpyinfo; */
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
   FRAME_KBOARD (f) = kb;