* xfns.c (Fx_create_frame, Fx_display_list):

* xfns.c (Fx_create_frame, Fx_display_list):
* window.c (window_fixed_size_p, enlarge_window, shrink_window_lowest_first):
* macterm.c (init_font_name_table):
* macfns.c (Fx_create_frame, Fx_display_list):
* lread.c (close_load_descs):
* keyboard.c (read_char_x_menu_prompt):
* fns.c (Fmember, Fmemql, Fdelete, Fset_char_table_parent):
* coding.c (code_convert_region_unwind): Test the type of an object
rather than just !NILP before extracting data from it.