(gobble_file): Fall back on using lstat when required:

(gobble_file): Fall back on using lstat when required:
when --dereference (-L) is not specified, and
- when operating on a dangling symlink
- when operating on command-line-symlink-to-directories
This fixes numerous problems.  Here are examples:
- `ls dangling-symlink' would fail with `no such file...'
Now it prints `dangling-symlink'.
- `ls -i symlink' would mistakenly print the inode of the referent.
Now it prints the inode of the symlink.  Likewise for --size (-s).
Based on a patch from Michael Stone.
Reported by Deepak Goel as Debian bug #173793.