Add (:documentation <form>) for dynamically-generated docstrings

* lisp/emacs-lisp/bytecomp.el:
(byte-compile-initial-macro-environment): Use macroexp-progn.
(byte-compile-cl-warn): Don't silence use of cl-macroexpand-all.
(byte-compile-file-form-defvar-function): Rename from
byte-compile-file-form-define-abbrev-table.
(defvaralias, byte-compile-file-form-custom-declare-variable): Use it.
(byte-compile): Use byte-compile-top-level rather than
byte-compile-lambda so we can compile non-values.
(byte-compile-form): Add warnings for failed uses of lexical vars via
quoted symbols.
(byte-compile-unfold-bcf): Improve message for failed inlining.
(byte-compile-make-closure): Handle new format of internal-make-closure
for dynamically-generated docstrings.

* lisp/emacs-lisp/cconv.el (cconv--convert-function):
Add `docstring' argument.
(cconv-convert): Use it to handle the new (:documentation ...) form.
(cconv-analyze-form): Handle the new (:documentation ...) form.

* src/eval.c (Ffunction): Handle the new (:documentation ...) form.
(syms_of_eval): Declare `:documentation'.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 2c9b6c8375b..15d8d27a921 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-05  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+        * eval.c (Ffunction): Handle the new (:documentation ...) form.
+        (syms_of_eval): Declare `:documentation'.
+
 2015-02-05  Martin Rudalics  <rudalics@gmx.at>
 
         * xdisp.c (Fwindow_text_pixel_size): Remove optional BUFFER