Bug 318856 Most entries contributed by textual editors are missing in the 'Edit' menu
I20100701-1105. 1. start new workspace 2. create a Java project 3. create a file 4. open 'Edit' main menu ==> most contributed items are missing (e.g. content assist, find actions).
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/ContributionsAnalyzer.java
contributions.add(copy);
			if (copy instanceof MToolBarSeparator && copy.getElementId() != null) {
				existingSeparatorNames.add(copy.getElementId());
			}
		}
		return true;
	}
	public static boolean processAddition(final MTrimBar trimBar, MTrimContribution contribution,
			List<MTrimElement> contributions, HashSet<String> existingToolbarIds) {
		int idx = getIndex(trimBar, contribution.getPositionInParent());
		if (idx == -1) {
			return false;
		}
		for (MTrimElement item : contribution.getChildren()) {
			if (item instanceof MToolBar && existingToolbarIds.contains(item.getElementId())) {
				
				continue;
			}
			MTrimElement copy = (MTrimElement) EcoreUtil.copy((EObject) item);
			if (DEBUG) {
				trace("addTrimContribution " + copy, trimBar.getWidget(), trimBar); 
			}
			trimBar.getChildren().add(idx++, copy);
			contributions.add(copy);
			if (copy instanceof MToolBar && copy.getElementId() != null) {
				existingToolbarIds.add(copy.getElementId());
			}
		}
		return true;
	}