Fix quitting bug when buffers are frozen

Problem noted by Eli Zaretskii in:
http://lists.gnu.org/archive/html/emacs-devel/2017-01/msg00721.html
This patch also fixes some other issues in that report.
* src/lisp.h (incr_rarely_quit): Remove.
All callers changed to use rarely_quit directly.
* src/search.c (freeze_buffer_relocation)
(thaw_buffer_relocation): New functions.
(looking_at_1, fast_looking_at, search_buffer):
Use them to fix bug when quitting when buffers are frozen.
* src/sysdep.c (emacs_intr_read): Rename from emacs_nointr_read.
All uses changed.

1 files changed, 0 insertions, 8 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 2d67e7edddb..1ac38164c27 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3145,14 +3145,6 @@ rarely_quit (unsigned short int count)
   if (! (count & (QUIT_COUNT_HEURISTIC - 1)))
     maybe_quit ();
 }
-
-/* Increment *QUIT_COUNT and rarely quit.  */
-
-INLINE void
-incr_rarely_quit (unsigned short int *quit_count)
-{
-  rarely_quit (++*quit_count);
-}
 
 extern Lisp_Object Vascii_downcase_table;
 extern Lisp_Object Vascii_canon_table;