src/vs/editor/contrib/wordHighlighter/wordHighlighter.ts/SemanticOccurenceAtPositionRequest/_compute
class SemanticOccurenceAtPositionRequest:	protected _compute(model: ITextModel, selection: Selection, wordSeparators: string, token: CancellationToken): Promise<DocumentHighlight[]> {
		return getOccurrencesAtPosition(model, selection.getPosition(), token).then(value => value || []);
	}