Method overwrite

packages/language-service/test/legacy/mock_host.ts:205–208

* Overwrite the entire content of `fileName` with `newText`. If cursor is * present in `newText`, it will be removed and the position of the cursor * will be returned.

(fileName: string, newText: string)

   * will be returned.
   */
  overwrite(fileName: string, newText: string): OverwriteResult {
    const scriptInfo = this.getScriptInfo(fileName);
    return this.overwriteScriptInfo(scriptInfo, newText);
  }

  /**
   * Overwrite an inline template defined in `fileName` and return the entire