then

  make extraclean && git clean -f && make bootstrap

gives "Wrong type argument" during byte compilation:

    make[3]: Entering directory '/home/vspinu/bin/emacs-test/lisp'
      ELC      ../lisp/international/eucjp-ms.elc
    Reloading stale loaddefs.el
    Loading /home/vspinu/bin/emacs-test/lisp/loaddefs.el (source)...
    make[3]: Leaving directory '/home/vspinu/bin/emacs-test/lisp'
    make -C ../admin/unidata all EMACS="../../src/bootstrap-emacs"
    make[3]: Entering directory '/home/vspinu/bin/emacs-test/admin/unidata'
      GEN      ../../src/macuvs.h
      GEN      ../../lisp/international/charprop.el
    Wrong type argument: char-or-string-p, #<EMACS BUG: INVALID DATATYPE (MISC 0x48ff) Save your buffers immediately and please report this bug>
    Makefile:87: recipe for target '../../lisp/international/charprop.el' failed
    make[3]: *** [../../lisp/international/charprop.el] Error 255
    make[3]: Leaving directory '/home/vspinu/bin/emacs-test/admin/unidata'
    Makefile:498: recipe for target '../lisp/international/charprop.el' failed
    make[2]: *** [../lisp/international/charprop.el] Error 2
    make[2]: Leaving directory '/home/vspinu/bin/emacs-test/src'
    Makefile:398: recipe for target 'src' failed
    make[1]: *** [src] Error 2
    make[1]: Leaving directory '/home/vspinu/bin/emacs-test'
    GNUmakefile:79: recipe for target 'bootstrap' failed


I am defining Bbobp, Fbobp, Sbobp just as it's done with any other primitive
with an optional argument. `Fbobp` is never used at C level, so the above diff
is complete and could be run as it is.

 Vitalie