Fix crash in require.extensions (#18788)

Co-authored-by: 190n <7763597+190n@users.noreply.github.com>

test/harness.ts

@@ -554,6 +554,9 @@ export function ospath(path: string) {
  */
 export async function toMatchNodeModulesAt(lockfile: any, root: string) {
   function shouldSkip(pkg: any, dep: any): boolean {
+    // Band-aid as toMatchNodeModulesAt will sometimes ask this function
+    // if a package depends on itself
+    if (pkg?.name === dep?.name) return true;
     return (
       !pkg ||
       !pkg.resolution ||