Merge from origin/emacs-25

9a41cd1 ; Fix typo
9356fe2 Expand FIXME near definition of fboundp
219b39f kill-rectangle should mention killed-rectangle
59fa4c3 Avoid assertion violations in nhexl-mode

diff --cc lisp/rect.el
Simple merge

diff --cc src/bidi.c
Simple merge

diff --cc src/data.c
Simple merge