message: add realpath to languageHost, so that typescript could follow symlinks
diff: @@ -64,6 +64,7 @@ function transpileViaLanguageServer(
  fileExists: ts.sys.fileExists,
  readFile: ts.sys.readFile,
  readDirectory: ts.sys.readDirectory,
  + realpath: ts.sys.realpath,
  getDirectories: ts.sys.getDirectories,
  directoryExists: ts.sys.directoryExists,
  };
  