vim-patch:8.1.0187: getwininfo() and win_screenpos() return different numbers

Problem:    getwininfo() and win_screenpos() return different numbers.
Solution:   Add one to "wincol" and "winrow" from getwininfo().
7132ddc101

runtime/doc/eval.txt

@@ -4741,25 +4741,6 @@ gettagstack([{nr}])					*gettagstack()*
 
 		See |tagstack| for more information about the tag stack.
 
-getwinpos([{timeout}])					*getwinpos()*
-		The result is a list with two numbers, the result of
-		getwinposx() and getwinposy() combined:
-			[x-pos, y-pos]
-		{timeout} can be used to specify how long to wait in msec for
-		a response from the terminal.  When omitted 100 msec is used.
-
-							*getwinposx()*
-getwinposx()	The result is a Number, which is the X coordinate in pixels of
-		the left hand side of the GUI Vim window.  The result will be
-		-1 if the information is not available.
-		The value can be used with `:winpos`.
-
-							*getwinposy()*
-getwinposy()	The result is a Number, which is the Y coordinate in pixels of
-		the top of the GUI Vim window.  The result will be -1 if the
-		information is not available.
-		The value can be used with `:winpos`.
-
 getwininfo([{winid}])					*getwininfo()*
 		Returns information about windows as a List with Dictionaries.
 
@@ -4789,6 +4770,25 @@ getwininfo([{winid}])					*getwininfo()*
 			winnr		window number
 			winrow		topmost screen column of the window
 
+getwinpos([{timeout}])					*getwinpos()*
+		The result is a list with two numbers, the result of
+		getwinposx() and getwinposy() combined:
+			[x-pos, y-pos]
+		{timeout} can be used to specify how long to wait in msec for
+		a response from the terminal.  When omitted 100 msec is used.
+
+							*getwinposx()*
+getwinposx()	The result is a Number, which is the X coordinate in pixels of
+		the left hand side of the GUI Vim window.  The result will be
+		-1 if the information is not available.
+		The value can be used with `:winpos`.
+
+							*getwinposy()*
+getwinposy()	The result is a Number, which is the Y coordinate in pixels of
+		the top of the GUI Vim window.  The result will be -1 if the
+		information is not available.
+		The value can be used with `:winpos`.
+
 getwinvar({winnr}, {varname} [, {def}])				*getwinvar()*
 		Like |gettabwinvar()| for the current tabpage.
 		Examples: >
@@ -8888,7 +8888,7 @@ win_id2win({expr})					*win_id2win()*
 win_screenpos({nr})					*win_screenpos()*
 		Return the screen position of window {nr} as a list with two
 		numbers: [row, col].  The first window always has position
-		[1, 1].
+		[1, 1], unless there is a tabline, then it is [2, 1].
 		{nr} can be the window number or the |window-ID|.
 		Return [0, 0] if the window cannot be found in the current
 		tabpage.

src/nvim/eval.c

@@ -10839,12 +10839,12 @@ static dict_T *get_win_info(win_T *wp, int16_t tpnr, int16_t winnr)
   tv_dict_add_nr(dict, S_LEN("winnr"), winnr);
   tv_dict_add_nr(dict, S_LEN("winid"), wp->handle);
   tv_dict_add_nr(dict, S_LEN("height"), wp->w_height);
-  tv_dict_add_nr(dict, S_LEN("winrow"), wp->w_winrow);
+  tv_dict_add_nr(dict, S_LEN("winrow"), wp->w_winrow + 1);
   tv_dict_add_nr(dict, S_LEN("topline"), wp->w_topline);
   tv_dict_add_nr(dict, S_LEN("botline"), wp->w_botline - 1);
   tv_dict_add_nr(dict, S_LEN("width"), wp->w_width);
   tv_dict_add_nr(dict, S_LEN("bufnr"), wp->w_buffer->b_fnum);
-  tv_dict_add_nr(dict, S_LEN("wincol"), wp->w_wincol);
+  tv_dict_add_nr(dict, S_LEN("wincol"), wp->w_wincol + 1);
 
   tv_dict_add_nr(dict, S_LEN("terminal"), bt_terminal(wp->w_buffer));
   tv_dict_add_nr(dict, S_LEN("quickfix"), bt_quickfix(wp->w_buffer));

src/nvim/testdir/test_bufwintabinfo.vim

@@ -52,21 +52,22 @@ function Test_getbufwintabinfo()
     let winlist = getwininfo()
     call assert_equal(5, len(winlist))
     call assert_equal(winwidth(1), winlist[0].width)
-    call assert_equal(0, winlist[0].wincol)
-    let tablineheight = winlist[0].winrow == 1 ? 1 : 0
-    call assert_equal(tablineheight, winlist[0].winrow)  " tabline adds one
+    call assert_equal(1, winlist[0].wincol)
+    " tabline adds one row in terminal, not in GUI
+    let tablineheight = winlist[0].winrow == 2 ? 1 : 0
+    call assert_equal(tablineheight + 1, winlist[0].winrow)
 
     call assert_equal(winbufnr(2), winlist[1].bufnr)
     call assert_equal(winheight(2), winlist[1].height)
-    call assert_equal(0, winlist[1].wincol)
-    call assert_equal(tablineheight + winheight(1) + 1, winlist[1].winrow)
+    call assert_equal(1, winlist[1].wincol)
+    call assert_equal(tablineheight + winheight(1) + 2, winlist[1].winrow)
 
     call assert_equal(1, winlist[2].winnr)
-    call assert_equal(tablineheight, winlist[2].winrow)
-    call assert_equal(0, winlist[2].wincol)
+    call assert_equal(tablineheight + 1, winlist[2].winrow)
+    call assert_equal(1, winlist[2].wincol)
 
-    call assert_equal(winlist[2].width + 1, winlist[3].wincol)
-    call assert_equal(0, winlist[4].wincol)
+    call assert_equal(winlist[2].width + 2, winlist[3].wincol)
+    call assert_equal(1, winlist[4].wincol)
 
     call assert_equal(1, winlist[0].tabnr)
     call assert_equal(1, winlist[1].tabnr)