Generates convenient accessors for the nested root. Change-Id: Ic0b1531de7ace475ff2a7b1f430d27f41c838430 Tested: on Windows.
Also removed it appending _wire to filenames, renamed the json golden file to .golden to not clash with generated files. Bug: 15781201 Change-Id: I8322861e50d1e5b6a5ab5e4b5e5d8ae13c356eb2 Tested: on Windows and Linux