extensions/typescript-language-features/src/languageFeatures/tsconfig.ts/TsconfigLinkProvider/provideDocumentLinks
class TsconfigLinkProvider:	public provideDocumentLinks(
		document: vscode.TextDocument,
		_token: vscode.CancellationToken
	): vscode.DocumentLink[] {
		const root = jsonc.parseTree(document.getText());
		if (!root) {
			return [];
		}

		return coalesce([
			this.getExtendsLink(document, root),
			...this.getFilesLinks(document, root),
			...this.getReferencesLinks(document, root)
		]);
	}