patch 8.2.1357: Vim9: cannot assign to / register
Problem: Vim9: cannot assign to / register.
Solution: Adjust check for assignment.
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index ef8797f..584126f 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -1439,6 +1439,13 @@
normal axyz
assert_equal("xyz", @.)
+ call CheckDefFailure(["@. = 'yes'"], 'E354:')
+
+ @/ = 'slash'
+ assert_equal('slash', @/)
+
+ @= = 'equal'
+ assert_equal('equal', @=)
enddef
def Test_expr7_namespace()