code: protected ILocationData getLocationWithTypeArguments(XAbstractFeatureCall call) {
  		final ICompositeNode startNode = NodeModelUtils.getNode(call);
  		if (startNode != null) {
  			List<INode> resultNodes = Lists.newArrayList();
  			if (call instanceof XFeatureCall) {
  				for (INode child : startNode.getChildren()) {
  					resultNodes.add(child);
  				}
  			} else if (call instanceof XMemberFeatureCall) {
  				boolean keywordSeen = false;
  				for (INode child : startNode.getChildren()) {
  					if (keywordSeen) {
  						resultNodes.add(child);
  					} else {
  						EObject grammarElement = child.getGrammarElement();
  						if (grammarElement instanceof Keyword) {
  							keywordSeen = true;
  						}
  					}
  				}
  			}
  			return toLocationData(resultNodes);
  		}
  		return null;
  	}
docs: /* @Nullable