Merge from origin/emacs-26

Merge from origin/emacs-26

913c001 * lisp/files.el (write-file): Clarify the doc string.  (Bug#3...
d614b84 Fix typos in midnight.el
8c2778a Improve documentation of 'move-file-to-trash'
c7b8a51 ; * doc/lispref/functions.texi (Anonymous Functions): Fix typo.
92296de * src/data.c (Ftype_of): xwidget objects are possible! (bug#3...
a3242cc Improve documentation of Diff mode
39e85a0 Note that lex bound lambda forms are not self-quoting (Bug#33...
fa605f2 Rewrite buffer display related doc-strings and doc
aa55659 Fix call to GlobalMemoryStatusEx in w32.c

# Conflicts:
#	doc/emacs/files.texi
#	src/data.c