Link with editor doesn't work when showing logical structure

[stephan]

Using OTSample-FlightBonus, switch the package explorer to showing roles files logically, open class FlightBonusDialog in the editor (either variant) and hit "link with Editor" in the package explorer.

The package explorer will not find the role file to select.

[stephan]

Fixed in r21645.

The original problem was fixed by a rewrite of ContentProvider.getParent():

• intercept PackageExplorerPart.showInput so that a role file compilation unit is not used as the input when in logical package mode, but the role file type is used instead.
• lookup of a role files parent must travel to the team type instead of the enclosing CU - this is needed to find tree paths to a given element

While implementing this I found some apparently unused code dating back to TPX-27 (updating issues in the package explorer when creating a new package etc.). Removed.

Another issue was found when creating a role file while in logical mode: an update was fired to display the newly created team package. This update is now blocked by intercepting PackageExplorerProblemTreeViewer.add(Object,Object).