extensions/npm/src/features/bowerJSONContribution.ts/BowerJSONContribution/resolveSuggestion
class BowerJSONContribution:	public resolveSuggestion(_resource: Uri | undefined, item: CompletionItem): Thenable<CompletionItem | null> | null {
		if (item.kind === CompletionItemKind.Property && item.documentation === '') {

			let label = item.label;
			if (typeof label !== 'string') {
				label = label.label;
			}

			return this.getInfo(label).then(documentation => {
				if (documentation) {
					item.documentation = documentation;
					return item;
				}
				return null;
			});
		}
		return null;
	}