[jdt-ui-dev] released 'structured selection' actions to cvs

["adam kiezun" <adam.kiezun@xxxxxxx>]

their purpose it to enable you to quickly select a list of statements
(mostly for extract method)

there are 3 actions - select (up), select next and select previous

you select sth - 'select up' will expand the selection to the smallest ast
node covering the selection

'select next' will do the same except for the case when the selection is a
list of statements (then, the next statement will be added)

'select previous' is self-explanatory

note that it is not available from the ui yet - to take advantage of it -
uncomment the following section: <!-- selectionGroup -->
(and the corresponding line :  <separator name="selectionGroup"/>)

 in plugin.xml of org.eclipse.jdt.ui

(i added some tests as well)
a.