* window.h (struct window):

* window.h (struct window):
* window.c (struct save_window_data, struct saved_window):
* termhooks.h (struct terminal):
* process.h (struct Lisp_Process):
* frame.h (struct frame):
* buffer.h (struct buffer):
* lisp.h (struct Lisp_Vector, struct Lisp_Char_Table)
(struct Lisp_Bool_Vector, struct Lisp_Subr, struct Lisp_Hash_Table):
The size field of (pseudo)vectors is now unsigned.
(ARRAY_MARK_FLAG, PSEUDOVECTOR_FLAG): Simplify accordingly.