[eclipse-pmc] API change request for Debug

[Darin Wright <Darin_Wright@xxxxxxxxxx>]

Debug would like apporval for the following
API change.

We introduced a new interface in 3.3
to support custom detail panes in the variables view - IDetailPane. The
detail pane is initialized with an IWorkbenchPartSite so it can contribute
to context menus, if needed. In order to display custom detail panes in
the inspect pop-up or other dialogs, we want to change the specification
to support a "null" IWorkbenchPartSite (the debug platform will
init a detail pane with a workbench part site that can be null when displayed
in a non-workbench part). Details are in the following bug:

        https://bugs.eclipse.org/bugs/show_bug.cgi?id=172728

This is a new interface, so it does
not break any 3.2 clients.

Thanks,

Darin Wright