patch 9.0.1124: virtual text at a column position is truncated

Problem:    Virtual text at a column position is truncated at the window edge.
            (Yegappan Lakshmanan)
Solution:   Do not truncated virtual text that is placed at a column.
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index a507a95..f1c7984 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -1978,6 +1978,7 @@
       setline(1, 'asdf '->repeat(15))
       prop_type_add('test', {highlight: 'Special'})
       prop_add(1, 43, {text: 'some virtual text', type: 'test'})
+      normal G$
   END
   call writefile(lines, 'XscriptPropWithWrap', 'D')
   let buf = RunVimInTerminal('-S XscriptPropWithWrap', #{rows: 6, cols: 50})