Bug 311194 [Dialogs] FilteredResourcesSelectionDialog's constructor doesn't specify what to put in the 'typesMask' parameter
Today someone on IRC put 0 when he should've been using IResource.FILE. We should clarify the javadocs.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/FilteredResourcesSelectionDialog.java
IWorkingSet workingSet = (IWorkingSet) event
									.getNewValue();
							if (workingSet != null
									&& !(workingSet.isAggregateWorkingSet() && workingSet
											.isEmpty())) {
								workingSetFilter.setWorkingSet(workingSet);
								setSubtitle(workingSet.getLabel());
							} else {
								IWorkbenchWindow window = PlatformUI
										.getWorkbench()
										.getActiveWorkbenchWindow();
								if (window != null) {
									IWorkbenchPage page = window
											.getActivePage();
									workingSet = page.getAggregateWorkingSet();
									if (workingSet.isAggregateWorkingSet()
											&& workingSet.isEmpty()) {
										workingSet = null;
									}
								}
								workingSetFilter.setWorkingSet(workingSet);
								setSubtitle(null);
							}
							scheduleRefresh();
						}
					}
				});
		menuManager.add(new Separator());
		workingSetFilterActionGroup.fillContextMenu(menuManager);
	}