refactor(#2787): use inline deprecation disabling

lua/nvim-tree.lua

@@ -31,8 +31,7 @@ function M.change_root(path, bufnr)
     if vim.fn.has "nvim-0.10" == 1 then
       ft = vim.api.nvim_get_option_value("filetype", { buf = bufnr }) or ""
     else
-      ---@diagnostic disable-next-line: deprecated
+      ft = vim.api.nvim_buf_get_option(bufnr, "filetype") or "" ---@diagnostic disable-line: deprecated
-      ft = vim.api.nvim_buf_get_option(bufnr, "filetype") or ""
     end
 
     for _, value in pairs(_config.update_focused_file.update_root.ignore_list) do
@@ -91,8 +90,7 @@ function M.tab_enter()
     if vim.fn.has "nvim-0.10" == 1 then
       ft = vim.api.nvim_get_option_value("filetype", { buf = 0 }) or ""
     else
-      ---@diagnostic disable-next-line: deprecated
+      ft = vim.api.nvim_buf_get_option(0, "ft") ---@diagnostic disable-line: deprecated
-      ft = vim.api.nvim_buf_get_option(0, "ft")
     end
 
     for _, filter in ipairs(M.config.tab.sync.ignore) do

lua/nvim-tree/help.lua

@@ -177,8 +177,7 @@ local function open()
   if vim.fn.has "nvim-0.10" == 1 then
     vim.api.nvim_set_option_value("modifiable", false, { buf = M.bufnr })
   else
-    ---@diagnostic disable-next-line: deprecated
+    vim.api.nvim_buf_set_option(M.bufnr, "modifiable", false) ---@diagnostic disable-line: deprecated
-    vim.api.nvim_buf_set_option(M.bufnr, "modifiable", false)
   end
 
   -- highlight it

lua/nvim-tree/lib.lua

@@ -85,8 +85,7 @@ function M.get_last_group_node(node)
     node = node.group_next
   end
 
-  ---@diagnostic disable-next-line: return-type-mismatch -- it can't be nil
+  return node ---@diagnostic disable-line: return-type-mismatch -- it can't be nil
-  return node
 end
 
 ---Group empty folders

lua/nvim-tree/live-filter.lua

@@ -154,8 +154,7 @@ local function create_overlay()
   if vim.fn.has "nvim-0.10" == 1 then
     vim.api.nvim_set_option_value("modifiable", true, { buf = overlay_bufnr })
   else
-    ---@diagnostic disable-next-line: deprecated
+    vim.api.nvim_buf_set_option(overlay_bufnr, "modifiable", true) ---@diagnostic disable-line: deprecated
-    vim.api.nvim_buf_set_option(overlay_bufnr, "modifiable", true)
   end
 
   vim.api.nvim_buf_set_lines(overlay_bufnr, 0, -1, false, { M.filter })

lua/nvim-tree/renderer/init.lua

@@ -22,8 +22,7 @@ local function _draw(bufnr, lines, hl_args, signs)
   if vim.fn.has "nvim-0.10" == 1 then
     vim.api.nvim_set_option_value("modifiable", true, { buf = bufnr })
   else
-    ---@diagnostic disable-next-line: deprecated
+    vim.api.nvim_buf_set_option(bufnr, "modifiable", true) ---@diagnostic disable-line: deprecated
-    vim.api.nvim_buf_set_option(bufnr, "modifiable", true)
   end
 
   vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, lines)
@@ -32,8 +31,7 @@ local function _draw(bufnr, lines, hl_args, signs)
   if vim.fn.has "nvim-0.10" == 1 then
     vim.api.nvim_set_option_value("modifiable", false, { buf = bufnr })
   else
-    ---@diagnostic disable-next-line: deprecated
+    vim.api.nvim_buf_set_option(bufnr, "modifiable", false) ---@diagnostic disable-line: deprecated
-    vim.api.nvim_buf_set_option(bufnr, "modifiable", false)
   end
 
   vim.fn.sign_unplace(SIGN_GROUP)