Bug 220662 [Markers] Problems view custom configuration with all types selected does not pick up new types
I20080226-1155 Some plug-ins in my workspace produced the new API problem markers. My Problems view was set to show "All Errors" (On any element, Error, all types selected), but the API problems did not get selected. There must be a way to configure the Problems view to also show all new problem types -- and this should be used in the default "All Errors" configuration.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
addGroupsFrom((IConfigurationElement) extensions.next(), groups);
		}
	}
	/**
	 * Add all of the markerGroups defined in element.
	 * 
	 * @param groups
	 */
	private void addGroupsFrom(IConfigurationElement element, Collection groups) {
		IConfigurationElement[] groupings = element
				.getChildren(MarkerSupportRegistry.MARKER_GROUPING);
		for (int i = 0; i < groupings.length; i++) {
			groups.add(MarkerGroup.createMarkerGroup(groupings[i]));
		}
	}
	/**
	 * Compute all of the markers for the receiver's type.
	 * 
	 * @param subMonitor
	 * @return MarkerEntry
	 */
	private Collection computeAllMarkers(SubProgressMonitor subMonitor) {
		Collection allMarkers = new HashSet();
		findMarkers(allMarkers, new IResource[] { ResourcesPlugin
				.getWorkspace().getRoot() }, null, IResource.DEPTH_INFINITE,
				subMonitor);
		return allMarkers;
	}
	/**
	 * Compute the marker for the supplied filter and add to return markers.