src/vs/platform/files/common/fileService.ts/FileService/doWriteReadableBufferedQueued
class FileService:	private async doWriteReadableBufferedQueued(provider: IFileSystemProviderWithOpenReadWriteCloseCapability, handle: number, readable: VSBufferReadable): Promise<void> {
		let posInFile = 0;

		let chunk: VSBuffer | null;
		while ((chunk = readable.read()) !== null) {
			await this.doWriteBuffer(provider, handle, chunk, chunk.byteLength, posInFile, 0);

			posInFile += chunk.byteLength;
		}
	}