Merge pdumper.c and alloc.c builtin symbol tests

* src/alloc.c (c_symbol_p): Move from here ...
* src/lisp.h (c_symbol_p): ... to here, and make it more portable
to hypothetical platforms where pointers are wider than ptrdiff_t.
* src/pdumper.c (dump_builtin_symbol_p): Use c_symbol_p.

1 files changed, 1 insertions, 6 deletions

diff --git a/src/pdumper.c b/src/pdumper.c
index 84147353e85..ddf44a53f86 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -719,12 +719,7 @@ emacs_offset (const void *emacs_ptr)
 static bool
 dump_builtin_symbol_p (Lisp_Object object)
 {
-  if (!SYMBOLP (object))
-    return false;
-  char *bp = (char *) lispsym;
-  struct Lisp_Symbol *s = XSYMBOL (object);
-  char *sp = (char *) s;
-  return bp <= sp && sp < bp + sizeof (lispsym);
+  return SYMBOLP (object) && c_symbol_p (XSYMBOL (object));
 }
 
 /* Return whether OBJECT has the same bit pattern in all Emacs