Refactor to hide deprecation warning

Closes GH-27.

lib/resolve.js

@@ -3,12 +3,13 @@
 // Last checked on: Apr 29, 2023.
 
 /**
+ * @typedef {import('node:fs').Stats} Stats
  * @typedef {import('./errors.js').ErrnoException} ErrnoException
  * @typedef {import('./package-json-reader.js').PackageConfig} PackageConfig
  */
 
 import assert from 'node:assert'
-import {Stats, statSync, realpathSync} from 'node:fs'
+import {statSync, realpathSync} from 'node:fs'
 import process from 'node:process'
 import {URL, fileURLToPath, pathToFileURL} from 'node:url'
 import path from 'node:path'
@@ -129,14 +130,17 @@ function emitLegacyIndexDeprecation(url, packageJsonUrl, base, main) {
 
 /**
  * @param {string} path
- * @returns {Stats}
+ * @returns {Stats | undefined}
  */
 function tryStatSync(path) {
   // Note: from Node 15 onwards we can use `throwIfNoEntry: false` instead.
   try {
     return statSync(path)
   } catch {
-    return new Stats()
+    // Note: in Node code this returns `new Stats`,
+    // but in Node 22 that’s marked as a deprecated internal API.
+    // Which, well, we kinda are, but still to prevent that warning,
+    // just yield `undefined`.
   }
 }
 
@@ -251,14 +255,14 @@ function finalizeResolution(resolved, base, preserveSymlinks) {
     filePath.endsWith('/') ? filePath.slice(-1) : filePath
   )
 
-  if (stats.isDirectory()) {
+  if (stats && stats.isDirectory()) {
     const error = new ERR_UNSUPPORTED_DIR_IMPORT(filePath, fileURLToPath(base))
     // @ts-expect-error Add this for `import.meta.resolve`.
     error.url = String(resolved)
     throw error
   }
 
-  if (!stats.isFile()) {
+  if (!stats || !stats.isFile()) {
     const error = new ERR_MODULE_NOT_FOUND(
       filePath || resolved.pathname,
       base && fileURLToPath(base),
@@ -996,7 +1000,7 @@ function packageResolve(specifier, base, conditions) {
   let lastPath
   do {
     const stat = tryStatSync(packageJsonPath.slice(0, -13))
-    if (!stat.isDirectory()) {
+    if (!stat || !stat.isDirectory()) {
       lastPath = packageJsonPath
       packageJsonUrl = new URL(
         (isScoped ? '../../../../node_modules/' : '../../../node_modules/') +