* src/bytecode.c (exec_byte_code): Remove old lexical binding slot handling
and replace it with the a integer args-desc handling.
* eval.c (funcall_lambda): Adjust arglist test accordingly.
* lisp/emacs-lisp/bytecomp.el (byte-compile-arglist-signature):
Handle integer arglist descriptor.
(byte-compile-make-args-desc): Make integer arglist descriptor.
(byte-compile-lambda): Use integer arglist descriptor to mark lexical
byte-coded functions instead of an extra slot.
* lisp/help-fns.el (help-add-fundoc-usage): Don't add a dummy doc.
(help-split-fundoc): Return a nil doc if there was no actual doc.
(help-function-arglist): Generate an arglist from an integer arg-desc.
* lisp/emacs-lisp/pcase.el (pcase--memoize): Rename from pcase-memoize;
Make only the key weak.
(pcase): Change the key used in the memoization table, so it does not
always get GC'd away.
* lisp/emacs-lisp/macroexp.el (macroexpand-all-1): Slight change to the
pcase pattern to generate slightly better code.
* lisp/emacs-lisp/cconv.el: Compute freevars in cconv-analyse.
(cconv-mutated, cconv-captured): Remove.
(cconv-captured+mutated, cconv-lambda-candidates): Don't give them
a global value.
(cconv-freevars-alist): New var.
(cconv-freevars): Remove.
(cconv--lookup-let): Remove.
(cconv-closure-convert-function): Extract from cconv-closure-convert-rec.
(cconv-closure-convert-rec): Adjust to above changes.
(fboundp): New function.
(cconv-analyse-function, form): Rewrite.
* lisp/emacs-lisp/bytecomp.el (byte-compile-initial-macro-environment):
Handle declare-function here.
(byte-compile-obsolete): Remove.
(byte-compile-arglist-warn): Check late defsubst here.
(byte-compile-file-form): Simplify.
(byte-compile-file-form-defsubst): Remove.
(byte-compile-macroexpand-declare-function): Rename from
byte-compile-declare-function, turn it into a macro-expander.
(byte-compile-normal-call): Check obsolescence.
(byte-compile-quote-form): Remove.
(byte-compile-defmacro): Revert to trunk's definition which seems to
work just as well and handles `declare'.
* lisp/emacs-lisp/byte-run.el (make-obsolete): Don't modify byte-compile.
* lisp/Makefile.in (BIG_STACK_DEPTH): Increase to 1200.
(compile-onefile): Pass $(BIG_STACK_OPTS) before "-l bytecomp".
* lisp/emacs-lisp/macroexp.el: Use lexbind.
(macroexpand-all-1): Check macro obsolescence.
* lisp/vc/diff-mode.el: Use lexbind.
* lisp/follow.el (follow-calc-win-end): Simplify.
* lisp/emacs-lisp/bytecomp.el (byte-compile-lapcode): Handle new form of
`byte-constant'.
(byte-compile-close-variables, displaying-byte-compile-warnings):
Add edebug spec.
(byte-compile-toplevel-file-form): New fun, split out of
byte-compile-file-form.
(byte-compile-from-buffer): Use it to avoid applying cconv
multiple times.
(byte-compile): Only strip `function' if it's present.
(byte-compile-lambda): Add `reserved-csts' argument.
Use new lexenv arg of byte-compile-top-level.
(byte-compile-reserved-constants): New var.
(byte-compile-constants-vector): Obey it.
(byte-compile-constants-vector): Handle new `byte-constant' form.
(byte-compile-top-level): Add args `lexenv' and `reserved-csts'.
(byte-compile-form): Don't check callargs here.
(byte-compile-normal-call): Do it here instead.
(byte-compile-push-unknown-constant)
(byte-compile-resolve-unknown-constant): Remove, unused.
(byte-compile-make-closure): Use `make-byte-code' rather than `curry',
putting the environment into the "constant" pool.
(byte-compile-get-closed-var): Use special byte-constant.
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker): Handle new
intermediate special form `internal-make-vector'.
(byte-optimize-lapcode): Handle new form of `byte-constant'.
* lisp/help-fns.el (describe-function-1): Don't handle funvecs.
* lisp/emacs-lisp/macroexp.el (macroexpand-all-1): Only convert quote to
function if the content is a lambda expression, not if it's a closure.
* emacs-lisp/eieio-come.el: Remove.
* lisp/emacs-lisp/eieio.el: Don't require eieio-comp.
(defmethod): Do a bit more work to find the body and wrap it into
a function before passing it to eieio-defmethod.
(eieio-defmethod): New arg `code' for it.
* lisp/emacs-lisp/debug.el (debugger-setup-buffer): Don't hide things in
debugger backtrace.
* lisp/emacs-lisp/cl-extra.el (cl-macroexpand-all): Use backquotes, and be
more careful when quoting a function value.
* lisp/emacs-lisp/cconv.el (cconv-freevars): Accept defvar/defconst.
(cconv-closure-convert-rec): Catch stray `internal-make-closure'.
* lisp/Makefile.in (COMPILE_FIRST): Compile pcase and cconv early.
* src/eval.c (Qcurry): Remove.
(funcall_funvec): Remove.
(funcall_lambda): Move new byte-code handling to reduce impact.
Treat all args as lexical in the case of lexbind.
(Fcurry): Remove.
* src/data.c (Qfunction_vector): Remove.
(Ffunvecp): Remove.
* src/lread.c (read1): Revert to calling make_byte_code here.
(read_vector): Don't call make_byte_code any more.
* src/lisp.h (enum pvec_type): Rename back to PVEC_COMPILED.
(XSETCOMPILED): Rename back from XSETFUNVEC.
(FUNVEC_SIZE): Remove.
(FUNVEC_COMPILED_TAG_P, FUNVEC_COMPILED_P): Remove.
(COMPILEDP): Rename back from FUNVECP.
* src/fns.c (Felt): Remove unexplained FUNVEC check.
* src/doc.c (Fdocumentation): Don't handle funvec.
* src/alloc.c (make_funvec, Ffunvec): Remove.
* doc/lispref/vol2.texi (Top):
* doc/lispref/vol1.texi (Top):
* doc/lispref/objects.texi (Programming Types, Funvec Type, Type Predicates):
* doc/lispref/functions.texi (Functions, What Is a Function, FunctionCurrying):
* doc/lispref/elisp.texi (Top): Remove mentions of funvec and curry.
* lisp/emacs-lisp/byte-lexbind.el (byte-compile-lforminfo-analyze):
Understand the :fun-body case for catch, save-window-excursion, and
condition-case.
(byte-compile-maybe-push-heap-environment): No need when nclosures is
zero and byte-compile-current-num-closures is -1.
* lisp/emacs-lisp/bytecomp.el (byte-compile-lambda): Fix `fun' that was not
renamed to `bytecomp-fun'.
* lisp/emacs-lisp/cconv.el (cconv-not-lexical-var-p): New function.
(cconv-freevars): Use it.
(cconv-closure-convert-rec): Avoid `position'.
(cconv-analyse-function): New function.
(cconv-analyse-form): Use it. `inclosure' can't be nil any more.
Check lexical vars at let-binding time rather than when referenced.
For defuns to be in an empty environment and lambdas to take lexical args.
Pay attention to the need to build closures in catch, unwind-protect,
save-window-excursion, condition-case, and track-mouse.
Fix defconst/defvar handling.
