tools: simplify lowercase-name-for-primitive rule

PR-URL: https://github.com/nodejs/node/pull/17653
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>

tools/eslint-rules/lowercase-name-for-primitive.js

@@ -9,41 +9,38 @@
 // Rule Definition
 //------------------------------------------------------------------------------
 
+const astSelector = 'NewExpression[callee.property.name="TypeError"]' +
+                    '[arguments.0.value="ERR_INVALID_ARG_TYPE"]';
+
 const primitives = [
   'number', 'string', 'boolean', 'null', 'undefined'
 ];
 
 module.exports = function(context) {
-  return {
+  function checkNamesArgument(node) {
-    NewExpression(node) {
+    const names = node.arguments[2];
-      if (
-        node.callee.property &&
-        node.callee.property.name === 'TypeError' &&
-        node.arguments[0].value === 'ERR_INVALID_ARG_TYPE'
-      ) {
-        checkNamesArgument(node.arguments[2]);
-      }
 
-      function checkNamesArgument(names) {
     switch (names.type) {
       case 'Literal':
-            checkName(names.value);
+        checkName(node, names.value);
         break;
       case 'ArrayExpression':
         names.elements.forEach((name) => {
-              checkName(name.value);
+          checkName(node, name.value);
         });
         break;
     }
   }
 
-      function checkName(name) {
+  function checkName(node, name) {
     const lowercaseName = name.toLowerCase();
     if (primitives.includes(lowercaseName) && !primitives.includes(name)) {
       const msg = `primitive should use lowercase: ${name}`;
       context.report(node, msg);
     }
   }
-    }
+
+  return {
+    [astSelector]: (node) => checkNamesArgument(node)
   };
 };