patch 8.2.3376: Vim9: no warning that "@r" does not do anything
Problem: Vim9: no warning that "@r" does not do anything.
Solution: Give a "no effect" error. (closes #8779)
diff --git a/src/testdir/test_vim9_cmd.vim b/src/testdir/test_vim9_cmd.vim
index 128575b..93b1295 100644
--- a/src/testdir/test_vim9_cmd.vim
+++ b/src/testdir/test_vim9_cmd.vim
@@ -537,7 +537,7 @@
CheckDefAndScriptSuccess(lines)
enddef
-def Test_register_use_linebreak()
+def Test_use_register()
var lines =<< trim END
new
@a = 'one'
@@ -551,6 +551,12 @@
bwipe!
END
CheckDefAndScriptSuccess(lines)
+
+ lines =<< trim END
+ @a = 'echo "text"'
+ @a
+ END
+ CheckDefAndScriptFailure(lines, 'E1207:')
enddef
def Test_environment_use_linebreak()