* lisp/emacs-lisp/generator.el: (iter-defun): Use `macroexp-parse-body'.
* test/automated/generator-tests.el (cps-testcase): Use
(cps-test-declarations-preserved): New test.
* doc/lispref/control.texi (Generators): Correct missing word. Clarify which
forms are legal in which parts of `unwind-protect'. Fix orphaned
close parenthesis.
* lisp/emacs-lisp/generator.el: Make globals conform to elisp
style throughout. Use more efficient font-lock patterns.
(cps-inhibit-atomic-optimization): Rename from
`cps-disable-atomic-optimization'.
(cps--gensym): New macro; replaces `cl-gensym' throughout.
(cps-generate-evaluator): Move the `iter-yield' local macro
definition here
(iter-defun, iter-lambda): from here.
* test/automated/generator-tests.el (cps-test-iter-close-finalizer):
Rename `gc-precise-p' to `gc-precise'.
* test/automated/generator-tests.el (cps-testcase): Use
`cps-inhibit-atomic-optimization' instead of
`cps-disable-atomic-optimization'.
