Resolver gives up too easily on `cave resolve libreoffice-bin`

[ant]

Originally from  here.

~ $ cave resolve libreoffice-bin --explain libreoffice 
... 
Explaining requested decisions: 

For app-office/libreoffice:0::(install_to_slash): 
    The following constraints were in action: 
      * !app-office/libreoffice, use existing if possible, installing to / (nothing is fine too) 
        Because of !app-office/libreoffice from app-office/libreoffice-bin-3.5.2.2-r1:0::gentoo 
      * >=app-office/libreoffice-3.5, use existing if possible, installing to / 
        Because of >=app-office/libreoffice-3.5 from app-office/libreoffice-l10n-3.5.4:0::gentoo, key 'Run dependencies', labelled 'RDEPEND' (originally || ( >=app-office/libreoffice-3.5 >=app-office/libreoffice-bin-3.5 )) 
    No decision could be made

[ciaranm]

No, the resolver does the right thing here. When a

dependency is encountered, it means "prefer as far to the left as you can".