Minor improvements to new stack-allocated Lisp objects.

Minor improvements to new stack-allocated Lisp objects.

* frame.h (FRAME_PARAMETER):
Prefer scoped_list1 to local_list1 where either would do.
* lisp.h (scoped_list4): New macro.
(local_cons, local_list1, local_list2, local_list3, local_list4)
(make_local_vector, make_local_string, build_local_string):
Prefer functions to macros where either would do.
* xdisp.c (build_desired_tool_bar_string):
Prefer scoped_list4 to local_list4 where either would do.