Use lexical-binding by default for M-:, --eval, and *scratch*

* lisp/startup.el (command-line): Default to lexical-binding in *scratch*.
(normal-no-mouse-startup-screen, command-line-1):
Use startup--get-buffer-create-scratch.
(command-line-1):
* lisp/simple.el (eval-expression):
* lisp/server.el (server-eval-and-print): Use lexical-binding to
evaluate the expression.
(server-execute): Use startup--get-buffer-create-scratch.
* lisp/ielm.el (inferior-emacs-lisp-mode): Default to lexical-binding.

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index e861a372b17..788be7060af 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -178,6 +178,10 @@ The default value is 30000, as the previously hard-coded threshold.
 +++
 ** The function 'read-passwd' uses '*' as default character to hide passwords.
 
+** Lexical binding is now used when evaluating interactive Elisp forms
+More specifically, lexical-binding is now used for M-:, --eval, as well
+as in the *scratch* and *ielm* buffers.
+
 ---
 ** The new option 'tooltip-resize-echo-area' avoids truncating tooltip text
 on GUI frames when tooltips are displayed in the echo area.  Instead,