patch 8.2.4872: Vim9: no error for using an expression only Commit: https://github.com/vim/vim/commit/ea72038d60401d351faaf1b4a52f4537e719df6f Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 5 16:08:55 2022 +0100 patch 8.2.4872: Vim9: no error for using an expression only Problem: Vim9: no error for using an expression only at the script level when followed by an empty line. Solution: Do not check the line number but whether something follows. (closes #10357)

Tests for complicated + argument to :edit command

STARTTEST
:$-1w! Xfile1
:$w! Xfile2
:edit +1|s/|/PIPE/|w Xfile1| e Xfile2|1 | s/\//SLASH/|w
:w! test.out
:e Xfile1
:w >> test.out
:qa!
ENDTEST

The result should be in Xfile1: "fooPIPEbar", in Xfile2: "fooSLASHbar"
foo|bar
foo/bar