update hovering table

fields beginning with underlines are sorted to the last

Author: sumneko

script/core/hover/table.lua

@@ -128,6 +128,19 @@ local function getKeyMap(fields)
             if ta == 'boolean' then
                 return a == true
             end
+            if ta == 'string' then
+                if a:sub(1, 1) == '_' then
+                    if b:sub(1, 1) == '_' then
+                        return a < b
+                    else
+                        return false
+                    end
+                elseif b:sub(1, 1) == '_' then
+                    return true
+                else
+                    return a < b
+                end
+            end
             return a < b
         else
             return tsa < tsb

test/hover/init.lua

@@ -504,10 +504,10 @@ local <?self?> = setmetatable({
 ]]
 [[
 local self: {
-    __index: table,
-    __name: string = "obj",
     id: integer = 1,
     remove: function,
+    __index: table,
+    __name: string = "obj",
 }
 ]]
 
@@ -790,8 +790,6 @@ TEST [[
 ]]
 [[
 (global) _G: _G {
-    _G: _G,
-    _VERSION: string = "Lua 5.4",
     arg: string[],
     assert: function,
     collectgarbage: function,
@@ -810,6 +808,8 @@ TEST [[
     module: function,
     newproxy: function,
     next: function,
+    os: oslib,
+    package: packagelib,
     ...(+22)
 }
 ]]
@@ -1850,6 +1850,23 @@ local x: {
 }
 ]]
 
+TEST [[
+local <?x?> = {
+    _x = '',
+    _y = '',
+    x  = '',
+    y  = '',
+}
+]]
+[[
+local x: {
+    x: string = "",
+    y: string = "",
+    _x: string = "",
+    _y: string = "",
+}
+]]
+
 TEST [[
 ---@class A
 ---@field x string