This commit annotates errors returned from FS Deno APIs to include
paths that were passed to the API calls.
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
The tests for testing that `Deno.truncateSync` and `Deno.truncate`
require write permissions seem to not call the functions they are
testing *at all* and are calling `Deno.mkdir` and `Deno.mkdirSync`
instead.
This commit replaces those calls with calls to `Deno.truncateSync`
and `Deno.truncate` respectively.