src/vs/workbench/api/common/extHostFileSystemInfo.ts/ExtHostFileSystemInfo/$acceptProviderInfos
class ExtHostFileSystemInfo:	$acceptProviderInfos(uri: UriComponents, capabilities: number | null): void {
		if (capabilities === null) {
			this._providerInfo.delete(uri.scheme);
		} else {
			this._providerInfo.set(uri.scheme, capabilities);
		}
	}