Use compiler macros for the key syntax checks

Use compiler macros for the key syntax checks

Compile-time key string syntax checks are better written using
compiler macros than with byte-hunk-handlers inside the compiler
proper.

* lisp/emacs-lisp/bytecomp.el (byte-compile-define-keymap)
(byte-compile-define-keymap--define): Remove.
* lisp/keymap.el (keymap--compile-check): New.
(keymap-set, keymap-global-set, keymap-local-set, keymap-global-unset)
(keymap-local-unset, keymap-unset, keymap-substitute)
(keymap-set-after, key-translate, keymap-lookup, keymap-local-lookup)
(keymap-global-lookup): Use compiler-macro for argument checks.
* lisp/subr.el (define-keymap--compile): New.
(define-keymap--define): Fold into define-keymap.
(define-keymap): Use compiler-macro.
(defvar-keymap): Use define-keymap.