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, 1 insertions, 1 deletions

diff --git a/src/window.c b/src/window.c
index e2dea8b70ef..ef58f43a0bd 100644
--- a/src/window.c
+++ b/src/window.c
@@ -7465,7 +7465,7 @@ saved by this function.  */)
   data->minibuf_selected_window = minibuf_level > 0 ? minibuf_selected_window : Qnil;
   data->root_window = FRAME_ROOT_WINDOW (f);
   data->focus_frame = FRAME_FOCUS_FRAME (f);
-  Lisp_Object tem = make_uninit_vector (n_windows);
+  Lisp_Object tem = make_nil_vector (n_windows);
   data->saved_windows = tem;
   for (ptrdiff_t i = 0; i < n_windows; i++)
     ASET (tem, i, make_nil_vector (VECSIZE (struct saved_window)));