Major optimization refactor, across the board

+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster
  startup; ~5-20% general boost
+ reduce consing, function calls & garbage collection by preferring
  cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and
  various cl-lib filter/map/reduce functions) -- where possible
+ prefer functions with dedicated opcodes, like assq (see byte-defop's
  in bytecomp.el for more)
+ prefer pcase & cond (faster) over cl-case
+ general refactor for code readability
+ ensure naming & style conventions are adhered to
+ appease byte-compiler by marking unused variables with underscore
+ defer minor mode activation to after-init, emacs-startup or
  window-setup hooks; a customization opportunity for users + ensures
  custom functionality won't interfere with startup.

modules/feature/debug/autoload/evil.el

@@ -0,0 +1,31 @@
+;;; feature/debug/autoload/evil.el -*- lexical-binding: t; -*-
+
+;;;###autoload (autoload '+debug:run "feature/debug/autoload/evil" nil t)
+(evil-define-command +debug:run (&optional path)
+  "Initiate debugger for current major mode"
+  (interactive "<f>")
+  (let ((default-directory (doom-project-root)))
+    (cond ((memq major-mode '(c-mode c++-mode))
+           (realgud:gdb (if path (concat "gdb " path))))
+          ((memq major-mode '(ruby-mode enh-ruby-mode))
+           (doom:repl nil (format "run '%s'" (file-name-nondirectory (or path buffer-file-name)))))
+          ((eq major-mode 'sh-mode)
+           (let ((shell sh-shell))
+             (when (string= shell "sh")
+               (setq shell "bash"))
+             (cond ((string= shell "bash")
+                    (realgud:bashdb (if path (concat "bashdb " path))))
+                   ((string= shell "zsh")
+                    (realgud:zshdb (if path (concat "zshdb " path))))
+                   (t (user-error "No shell debugger for %s" shell)))))
+          ;; TODO Add python debugging
+          ((memq major-mode '(js-mode js2-mode js3-mode))
+           (realgud:trepanjs))
+          ((eq major-mode 'haskell-mode)
+           (haskell-debug))
+          (t (user-error "No debugger for %s" major-mode)))))
+
+;;;###autoload (autoload '+debug:toggle-breakpoint "feature/debug/autoload/evil" nil t)
+(evil-define-command +debug:toggle-breakpoint (&optional bang)
+  (interactive "<!>")
+  (call-interactively (if bang 'realgud:cmd-clear 'realgud:cmd-break)))