[Console] Ignore posix_istatty warnings

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| License       | MIT

When input stream is ``php://memory`` or ``php://temp`` function ``posix_isatty`` throws following warning

> posix_isatty(): could not use stream of type 'MEMORY' in ....