patch 7.4.2216
Problem:    Test fails without the +sign feature.
Solution:   Only check for signcolumn with the +sign feature.
diff --git a/src/testdir/test_bufwintabinfo.vim b/src/testdir/test_bufwintabinfo.vim
index fa9d97b..ec1f538 100644
--- a/src/testdir/test_bufwintabinfo.vim
+++ b/src/testdir/test_bufwintabinfo.vim
@@ -49,7 +49,9 @@
     call assert_equal(winbufnr(2), winlist[1].bufnum)
     call assert_equal(winheight(2), winlist[1].height)
     call assert_equal(1, winlist[2].nr)
-    call assert_equal('auto', winlist[0].options.signcolumn)
+    if has('signs')
+      call assert_equal('auto', winlist[0].options.signcolumn)
+    endif
     call assert_equal(2, winlist[3].tpnr)
     call assert_equal('green', winlist[2].variables.signal)
     call assert_equal(winwidth(1), winlist[0].width)