* lisp/loadhist.el (read-feature): Get rid of fake feature nil.

* src/minibuf.c (Ftry_completion, Fall_completions)
(Ftest_completion): Use FUNCTIONP.  (Bug#15889)

2 files changed, 8 insertions, 9 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 8131c7b7355..92174beb27b 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2013-11-15  Leo Liu  <sdl.web@gmail.com>
+
+        * minibuf.c (Ftry_completion, Fall_completions)
+        (Ftest_completion): Use FUNCTIONP.  (Bug#15889)
+
 2013-11-15  Paul Eggert  <eggert@cs.ucla.edu>
 
         * lisp.h (DEFINE_GDB_SYMBOL_BEGIN, DEFINE_GDB_SYMBOL_END):
diff --git a/src/minibuf.c b/src/minibuf.c
index 7ca4dae089b..8eb1a2890e0 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -1199,9 +1199,7 @@ is used to further constrain the set of candidates.  */)
     type = (HASH_TABLE_P (collection) ? hash_table
             : VECTORP (collection) ? obarray_table
             : ((NILP (collection)
-                || (CONSP (collection)
-                    && (!SYMBOLP (XCAR (collection))
-                        || NILP (XCAR (collection)))))
+                || (CONSP (collection) && !FUNCTIONP (collection)))
                ? list_table : function_table));
   ptrdiff_t idx = 0, obsize = 0;
   int matchcount = 0;
@@ -1460,9 +1458,7 @@ with a space are ignored unless STRING itself starts with a space.  */)
   Lisp_Object allmatches;
   int type = HASH_TABLE_P (collection) ? 3
     : VECTORP (collection) ? 2
-    : NILP (collection) || (CONSP (collection)
-                            && (!SYMBOLP (XCAR (collection))
-                                || NILP (XCAR (collection))));
+    : NILP (collection) || (CONSP (collection) && !FUNCTIONP (collection));
   ptrdiff_t idx = 0, obsize = 0;
   ptrdiff_t bindcount = -1;
   Lisp_Object bucket, tem, zero;
@@ -1691,9 +1687,7 @@ the values STRING, PREDICATE and `lambda'.  */)
 
   CHECK_STRING (string);
 
-  if ((CONSP (collection)
-       && (!SYMBOLP (XCAR (collection)) || NILP (XCAR (collection))))
-      || NILP (collection))
+  if (NILP (collection) || (CONSP (collection) && !FUNCTIONP (collection)))
     {
       tem = Fassoc_string (string, collection, completion_ignore_case ? Qt : Qnil);
       if (NILP (tem))