Fix GC bugs related to uninitialized vectors

Avoid problems if GC occurs while initializing a vector.
Problem with Fdelete reported by Pip Cet in:
https://lists.gnu.org/r/emacs-devel/2020-08/msg00313.html
I looked for similar problems elsewhere and found quite a few.
* src/coding.c (make_subsidiaries):
* src/composite.c (syms_of_composite):
* src/font.c (build_style_table, Ffont_get_glyphs):
* src/nsselect.m (clean_local_selection_data):
* src/nsxwidget.m (js_to_lisp):
* src/syntax.c (init_syntax_once):
* src/window.c (Fcurrent_window_configuration):
* src/xselect.c (selection_data_to_lisp_data)
(clean_local_selection_data):
Use make_nil_vector instead of make_uninit_vector.
* src/fns.c (Fdelete):
* src/xwidget.c (webkit_js_to_lisp):
Use allocate_nil_vector instead of allocate_vector.
* src/search.c (Fnewline_cache_check):
Use make_vector instead of make_uninit_vector.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/xselect.c b/src/xselect.c
index 48d6215a7bb..bf50c598b2a 100644
--- a/src/xselect.c
+++ b/src/xselect.c
@@ -1594,7 +1594,7 @@ selection_data_to_lisp_data (struct x_display_info *dpyinfo,
         return x_atom_to_symbol (dpyinfo, (Atom) idata[0]);
       else
         {
-          Lisp_Object v = make_uninit_vector (size / sizeof (int));
+          Lisp_Object v = make_nil_vector (size / sizeof (int));
 
           for (i = 0; i < size / sizeof (int); i++)
             ASET (v, i, x_atom_to_symbol (dpyinfo, (Atom) idata[i]));
@@ -1653,7 +1653,7 @@ selection_data_to_lisp_data (struct x_display_info *dpyinfo,
   else
     {
       ptrdiff_t i;
-      Lisp_Object v = make_uninit_vector (size / X_LONG_SIZE);
+      Lisp_Object v = make_nil_vector (size / X_LONG_SIZE);
 
       if (type == XA_INTEGER)
         {
@@ -1860,7 +1860,7 @@ clean_local_selection_data (Lisp_Object obj)
       Lisp_Object copy;
       if (size == 1)
         return clean_local_selection_data (AREF (obj, 0));
-      copy = make_uninit_vector (size);
+      copy = make_nil_vector (size);
       for (i = 0; i < size; i++)
         ASET (copy, i, clean_local_selection_data (AREF (obj, i)));
       return copy;