vim-patch:8.0.1563: getwinposx() timeout #9955

Problem:    Timeout of getwinposx() can be too short. (lilydjwg)
Solution:   Add getwinpos(). (closes vim/vim#2689)
3f54fd319f

src/nvim/eval.lua

@@ -143,6 +143,7 @@ return {
     gettabvar={args={2, 3}},
     gettabwinvar={args={3, 4}},
     getwininfo={args={0, 1}},
+    getwinpos={args={0, 1}},
     getwinposx={},
     getwinposy={},
     getwinvar={args={2, 3}},