Bug 88838 [Undo] - API cleanup - remove IContextConsultingOperationApprover
Early on this was involved in scenarios where editors examined other operations. This is no longer used. Operation approvers generally apply to all contexts and are installed at the OperationHistory level. Until there is a concrete need for this API it should be removed. It is gratuitous at this point.
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/operations/DefaultOperationHistory.java
throw new ExecutionException(
					"While executing the operation, an exception occurred", e); 
		}
		
		
		if (!merging) {
			if (status.isOK()) {
				notifyDone(operation);
				
				 
				 
				  
				
				if (operation.canUndo()) {
					add(operation);
				}
			} else {
				notifyNotOK(operation);
			}
		} else {
			
			operation.dispose();
		}
		
		return status;
	}
	/*
	 * Filter the specified list to include only the specified undo context.
	 */
	private IUndoableOperation[] filter(List list, IUndoContext context) {