Bug 61878 Package explorer is filtering out plugin dependencies [package explorer]
Build 20040506 When expanding the Plug-in Dependencies container, it is counter-intuitive to hide project dependencies. These are shown in the build path wizard itself, when you expand this container. I would expect to see them all the time.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerContentProvider.java
if ((status & IResourceDelta.REMOVED) != 0) {
			if (parent instanceof IPackageFragment) {
				
				postRefresh(internalGetParent(parent));
				return true;
			} else 
				postRemove(resource);
		}
		if ((status & IResourceDelta.ADDED) != 0) {
			if (parent instanceof IPackageFragment) {
				
				postRefresh(internalGetParent(parent));	
				return true;
			} else
				postAdd(parent, resource);
		}
		
		if ((flags & IResourceDelta.OPEN) != 0) {
			postProjectStateChanged(internalGetParent(parent));
			return true;		
		}
		processResourceDeltas(delta.getAffectedChildren(), resource);
		return false;
	}
	
	void setIsFlatLayout(boolean state) {
		fIsFlatLayout= state;
	}