Don't load comp when installing an existing trampoline

Don't load comp when installing an existing trampoline

	* lisp/emacs-lisp/nadvice.el (advice--add-function): Update.
	(comp-subr-trampoline-install): Update src file.
	* lisp/emacs-lisp/comp.el (comp-trampoline-compile): Autoload.
	* lisp/emacs-lisp/comp-run.el (comp-log-buffer-name)
	(native--compile-async, comp-warn-primitives)
	(comp-trampoline-filename, comp-eln-load-path-eff)
	(comp-trampoline-search, comp-trampoline-compile): Move here.
	* lisp/emacs-lisp/advice.el (comp-subr-trampoline-install): Update
	src file.