Invalidate overlay.dentry.dirents during open() file creation.
Invalidate overlay.dentry.dirents during open() file creation.

Updates #1199

PiperOrigin-RevId: 339528827

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor