Simplify FUNCTIONP implementation

* src/bytecode.c (exec_byte_code):
* src/image.c (parse_image_spec):
Prefer FUNCTIONP (x) to !NILP (Ffunctionp (x)).
* src/eval.c (FUNCTIONP): Move here ...
* src/lisp.h: ... from here.  No longer inline, as that
bloats the text and does not help speed (at least on my platform).
(functionp): Remove this name, since callers use FUNCTIONP.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dbusbind.c b/src/dbusbind.c
index a0146a3bf53..23392d8dcc3 100644
--- a/src/dbusbind.c
+++ b/src/dbusbind.c
@@ -1309,7 +1309,7 @@ usage: (dbus-message-internal &rest REST)  */)
       XD_DBUS_VALIDATE_PATH (path);
       XD_DBUS_VALIDATE_INTERFACE (interface);
       XD_DBUS_VALIDATE_MEMBER (member);
-      if (!NILP (handler) && (!FUNCTIONP (handler)))
+      if (!NILP (handler) && !FUNCTIONP (handler))
         wrong_type_argument (Qinvalid_function, handler);
     }