Bump the development version to 2.0.0-snapshot

Rename this development cycle from 1.23.0 to 2.0.0 to reflect the scope of
the changes. Update the version header and `cider-version', and retarget
every 1.23.0 package-version and obsolescence tag (all added this cycle,
never released) to 2.0.0, along with the doc, roadmap and test references.

Author: bbatsov

ROADMAP.md

@@ -135,7 +135,7 @@ a clickable, inspectable object you can send back to the REPL.
 ### Stepwise macroexpansion
 
 In-place, stepwise macro expansion (à la
-[macrostep](https://github.com/joddie/macrostep)) shipped in CIDER 1.23:
+[macrostep](https://github.com/joddie/macrostep)) shipped in CIDER 2.0:
 `cider-macrostep-expand` expands the form at point one level inline, you can
 step into nested forms and collapse back (`cider-macrostep-mode`), the
 further-expandable heads are highlighted with `n`/`p` navigation, and the

doc/modules/ROOT/pages/repl/basic_usage.adoc

@@ -42,7 +42,7 @@ reference covering the common REPL interactions, loading code, switching
 namespaces and moving between the REPL and your source.  Set
 `cider-repl-display-help-banner` to nil to drop the hint from new REPLs.
 
-TIP: Since CIDER 1.23 the REPL transcript no longer dumps the full jack-in
+TIP: Since CIDER 2.0 the REPL transcript no longer dumps the full jack-in
 command or the ClojureScript REPL init form on startup (a ClojureScript REPL
 just notes its type).  Run `cider-repl-describe-startup` (the `,startup`
 shortcut) to see those launch details - project, endpoint, the jack-in command

lisp/cider-cheatsheet.el

@@ -62,12 +62,12 @@ from ClojureDocs or any other function accepting a var as an argument."
 (defface cider-cheatsheet-section
   '((t (:inherit font-lock-keyword-face :weight bold)))
   "Face for top-level sections in the cheatsheet buffer."
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defface cider-cheatsheet-subsection
   '((t (:weight bold)))
   "Face for nested sections in the cheatsheet buffer."
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defconst cider-cheatsheet-hierarchy
   '(("Documentation"

lisp/cider-client.el

@@ -247,7 +247,7 @@ Signal an error if it is not supported."
 (make-obsolete 'cider-ensure-op-supported
                "op support is now enforced automatically by the nREPL senders, \
 so commands no longer need an explicit check."
-               "1.23.0")
+               "2.0.0")
 
 (defvar cider--skip-op-ensure nil
   "When non-nil, skip the automatic op-support check in CIDER's nREPL senders.
@@ -338,7 +338,7 @@ prefer the keyword-argument `cider-nrepl-sync-request'."
                            :abort-on-input abort-on-input
                            :callback callback))
 
-(make-obsolete 'cider-nrepl-send-sync-request 'cider-nrepl-sync-request "1.23.0")
+(make-obsolete 'cider-nrepl-send-sync-request 'cider-nrepl-sync-request "2.0.0")
 
 (defun cider-nrepl-send-unhandled-request (request &optional connection)
   "Send REQUEST to the nREPL CONNECTION and ignore any responses.
@@ -395,7 +395,7 @@ prefer the keyword-argument `cider-nrepl-send-eval-request'."
                                  :additional-params additional-params
                                  :connection connection))
 
-(make-obsolete 'cider-nrepl-request:eval 'cider-nrepl-send-eval-request "1.23.0")
+(make-obsolete 'cider-nrepl-request:eval 'cider-nrepl-send-eval-request "2.0.0")
 
 (defun cider-nrepl-sync-request:eval (input &optional connection ns)
   "Send the INPUT to the nREPL CONNECTION synchronously.

lisp/cider-doc.el

@@ -65,14 +65,14 @@ appends them to the `*cider-doc*' buffer.  When nil, the buffer instead shows
 a button (and the \\`e' key) to fetch them on demand."
   :type 'boolean
   :group 'cider-doc
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-doc-clojuredocs-max-examples 3
   "Maximum number of ClojureDocs examples to show inline in the doc buffer.
 A link to the full ClojureDocs entry is shown when more examples exist."
   :type 'integer
   :group 'cider-doc
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (declare-function cider-apropos "cider-apropos")
 (declare-function cider-apropos-select "cider-apropos")

lisp/cider-eval.el

@@ -132,7 +132,7 @@ If t, save the file without confirmation."
 
 (defconst cider-output-buffer "*cider-out*")
 
-(define-obsolete-variable-alias 'cider-interactive-eval-output-destination 'cider-eval-output-destination "1.23.0")
+(define-obsolete-variable-alias 'cider-interactive-eval-output-destination 'cider-eval-output-destination "2.0.0")
 
 (defcustom cider-eval-output-destination 'repl-buffer
   "The destination for stdout and stderr produced from interactive evaluation.
@@ -141,7 +141,7 @@ If `output-buffer', it's sent to a dedicated `*cider-out*' buffer."
   :type '(choice (const :tag "REPL buffer" repl-buffer)
                  (const :tag "Dedicated output buffer" output-buffer))
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-comment-prefix ";; => "
   "The prefix to insert before the first line of commented output."
@@ -179,7 +179,7 @@ and use their own fixed formatting."
                  (const :tag "Reader ignore form (#_)" ignore)
                  (const :tag "Comment form (comment ...)" comment))
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defun cider--comment-format ()
   "Return the comment formatting for `cider-comment-style'.

lisp/cider-jack-in.el

@@ -110,7 +110,7 @@ execution policy."
                  (string :tag "Options"))
   :group 'cider
   :safe (lambda (s) (or (null s) (stringp s)))
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-clojure-cli-aliases
   nil

lisp/cider-macroexpansion.el

@@ -44,7 +44,7 @@
 This makes it more obvious that the buffer's contents changed."
   :type 'boolean
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-macroexpansion-display-namespaces 'tidy
   "Determines if namespaces are displayed in the macroexpansion buffer.

lisp/cider-macrostep.el

@@ -58,13 +58,13 @@ Possible values are:
                  (const :tag "Show fully-qualified namespaces" qualified)
                  (const :tag "Show namespace aliases" tidy))
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-macrostep-highlight-expansion t
   "Whether to briefly highlight (pulse) a freshly inserted inline expansion."
   :type 'boolean
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-macrostep-highlight-expandable t
   "Whether to highlight the operators of further-expandable sub-forms.
@@ -74,7 +74,7 @@ a macro are underlined, and `n'/`p' navigate between them.  Requires the
 silently skipped."
   :type 'boolean
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-macrostep-color-gensyms t
   "Whether to colorize the gensyms introduced by a macro expansion.
@@ -83,7 +83,7 @@ expansion gets its own color from `cider-macrostep-gensym-colors', so a
 binding introduced by the macro can be tracked through the expansion."
   :type 'boolean
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defcustom cider-macrostep-gensym-colors
   '("#d33682" "#268bd2" "#859900" "#b58900" "#6c71c4" "#2aa198" "#cb4b16")
@@ -92,7 +92,7 @@ Each distinct gensym in an expansion is assigned the next color in this
 list, wrapping around when an expansion has more gensyms than colors."
   :type '(repeat color)
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defface cider-macrostep-expansion-face
   '((((min-colors 16777216) (background light)) :background "#eef3fb" :extend t)
@@ -101,13 +101,13 @@ list, wrapping around when an expansion has more gensyms than colors."
     (((background dark)) :background "gray22" :extend t))
   "Face for the background of an inline macro expansion."
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defface cider-macrostep-expandable-face
   '((t :underline t :weight bold))
   "Face for the operator of a sub-form that can be expanded further."
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defvar-local cider-macrostep--overlays nil
   "Stack of overlays for the current `cider-macrostep-mode' session.

lisp/cider-ns-state.el

@@ -56,13 +56,13 @@ For per-form staleness, use the evaluation fringe indicators instead (see
   :type '(set (const :tag "Mode-line marker" mode-line)
               (const :tag "Fringe marker" fringe))
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defface cider-ns-load-state-face
   '((t :inherit warning))
   "Face for the namespace load-state marker (mode line and fringe)."
   :group 'cider
-  :package-version '(cider . "1.23.0"))
+  :package-version '(cider . "2.0.0"))
 
 (defconst cider-ns-state--fringe-marker
   (propertize " " 'display '(left-fringe empty-line cider-ns-load-state-face))