extensions/typescript-language-features/src/tsServer/bufferSyncSupport.ts/BufferSynchronizer/constructor
class BufferSynchronizer:	constructor(
		private readonly client: ITypeScriptServiceClient,
		pathNormalizer: (path: vscode.Uri) => string | undefined,
		onCaseInsenitiveFileSystem: boolean
	) {
		this._pending = new ResourceMap<BufferOperation>(pathNormalizer, {
			onCaseInsenitiveFileSystem
		});
	}