Switch from LuaCheck to LuaLS

.luarc.json

@@ -1,5 +1,68 @@
 {
-    "Lua.diagnostics.disable": [
-        "luadoc-miss-type-name"
-    ]
+    "$schema": "https://raw.githubusercontent.com/LuaLS/vscode-lua/master/setting/schema.json",
+    "completion.requireSeparator": "/",
+    "doc.privateName": [ "__" ],
+    "doc.protectedName": [ "_" ],
+    "runtime.version": "Lua 5.2",
+    "runtime.pluginArgs": [
+        "--clusterio-modules"
+    ],
+    "diagnostics.unusedLocalExclude": [ "_", "i", "j", "k", "v" ],
+    "diagnostics.groupFileStatus": {
+        "ambiguity": "Any",
+        "await": "None",
+        "codestyle": "Opened",
+        "conventions": "Any",
+        "duplicate": "Any",
+        "global": "Any",
+        "luadoc": "Opened",
+        "redefined": "Opened",
+        "strict": "Fallback",
+        "strong": "Fallback",
+        "type-check": "Any",
+        "unbalanced": "Opened",
+        "unused": "Opened"
+    },
+    "diagnostics.neededFileStatus": {
+        "close-non-object": "Any",
+        "discard-returns": "Any",
+        "deprecated": "None",
+        "no-unknown": "None",
+        "spell-check": "None!"
+    },
+    "nameStyle.config": {
+        "local_name_style": [{
+            "type" : "pattern",
+            "param": "_?_?(\\w+)",
+            "$1": "snake_case"
+        }],
+        "function_param_name_style": [{
+            "type" : "pattern",
+            "param": "_?_?(\\w+)",
+            "$1": "snake_case"
+        }],
+        "function_name_style": [{
+            "type" : "pattern",
+            "param": "_?_?(\\w+)",
+            "$1": "snake_case"
+        }],
+        "local_function_name_style": [{
+            "type" : "pattern",
+            "param": "_?_?(\\w+)",
+            "$1": "snake_case"
+        }],
+        "table_field_name_style": [{
+            "type" : "pattern",
+            "param": "_?_?(\\w+)",
+            "$1": "snake_case"
+        }],
+        "global_variable_name_style": "upper_snake_case",
+        "module_name_style": [ "pascal_case", "snake_case" ],
+        "require_module_name_style": [ "pascal_case", "snake_case" ],
+        "class_name_style": "pascal_case",
+        "const_variable_name_style": "upper_snake_case"
+    },
+    "format.defaultConfig": {
+        "continuation_indent.in_expr": "0"
+    }
 }