function Deno.readLinkSync
readLinkSync(path: string | URL): string
Synchronously returns the full path destination of the named symbolic
link.
```ts
Deno.symlinkSync("./test.txt", "./test_link.txt");
const target = Deno.readLinkSync("./test_link.txt"); // full path of ./test.txt
```
Throws TypeError if called with a hard link.
Requires `allow-read` permission.
string