Modifications enable use by the build system.

Test: Tested locally by dumping abi of libstdc++ and comparing it
      against the abi-dump produced by the unmodified version of abi-dumper.
      Vtable information extra since vtable-dumper doesn't work on
      target shared libraries.

Change-Id: Ieddedfc77d734fddba0c7e0a6ad02458fb1ad80c
2 files changed