src/vs/workbench/api/common/extHostLanguageFeatures.ts/DocumentSemanticTokensAdapter/constructor
class DocumentSemanticTokensAdapter:	constructor(
		private readonly _documents: ExtHostDocuments,
		private readonly _provider: vscode.DocumentSemanticTokensProvider,
	) {
		this._previousResults = new Map<number, SemanticTokensPreviousResult>();
	}