Bug 223246 [Markers] Rename markerFieldFilterGrouping
markerFieldFilterGrouping is not meaningful name for something that is really a markerFieldConfiguration definition. Added to the fact that we also have markerGroupings this is very confusing.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerContentGenerator.java
+ extendedElements.size()];
			System
					.arraycopy(filterGroups, 0, allGroups, 0,
							filterGroups.length);
			Iterator extras = extendedElements.iterator();
			int index = filterGroups.length;
			while (extras.hasNext()) {
				allGroups[index] = (IConfigurationElement) extras.next();
			}
			return allGroups;
		}
		return filterGroups;
	}
	/**
	 * Return the id of the receiver.
	 * 
	 * @return String
	 */
	public String getId() {
		return configurationElement
				.getAttribute(MarkerSupportInternalUtilities.ATTRIBUTE_ID);
	}
	/**
	 * Get the list of initially visible fields
	 * 
	 * @return {@link MarkerField}[]
	 */
	MarkerField[] getInitialVisible() {
		return initialVisible;
	}