message: Use Object.create(null) for Manager.
diff: @@ -79,12 +79,12 @@ export class Manager {
  /**
  * The content cache for each LaTeX file.
  */
  - private readonly cachedContent: Content = {}
  + private readonly cachedContent = Object.create(null) as Content
  - private readonly localRootFiles: { [key: string]: string | undefined } = {}
  - private readonly rootFilesLanguageIds: { [key: string]: string | undefined } = {}
  + private readonly localRootFiles = Object.create(null) as { [key: string]: string | undefined }
  + private readonly rootFilesLanguageIds = Object.create(null) as { [key: string]: string | undefined }
  // Store one root file for each workspace.
  - private readonly rootFiles: { [key: string]: RootFileType | undefined } = {}
  + private readonly rootFiles = Object.create(null) as { [key: string]: RootFileType | undefined }
  private workspaceRootDirUri: string = ''
  private readonly extension: Extension
  