src/vs/workbench/api/browser/mainThreadLanguageFeatures.ts/MainThreadLanguageFeatures/$registerDocumentOnDropEditProvider
class MainThreadLanguageFeatures:	$registerDocumentOnDropEditProvider(handle: number, selector: IDocumentFilterDto[]): void {
		const provider = new MainThreadDocumentOnDropEditProvider(handle, this._proxy);
		this._documentOnDropEditProviders.set(handle, provider);
		this._registrations.set(handle, combinedDisposable(
			this._languageFeaturesService.documentOnDropEditProvider.register(selector, provider),
			toDisposable(() => this._documentOnDropEditProviders.delete(handle)),
		));
	}