Re: [RFA/DWARF] Add DW_AT_GNAT_descriptive_type support

[Joel Brobecker <brobecker@adacore.com>]

> FWIW, I skimmed through it and nothing jumped out at me.

Thanks, Tom. Patch now checked in. I'll ask Eric to work on the GCC
side.  For the record, I switched the implementation of need_gnat_info
to always returning zero:

  /* FIXME: brobecker/2010-10-12: As of now, only the AdaCore version
     of GNAT produces this auxiliary information, without any indication
     that it is produced.  Part of enhancing the FSF version of GNAT
     to produce that information will be to put in place an indicator
     that we can use in order to determine whether the descriptive type
     info is available or not.  One suggestion that has been made is
     to use a new attribute, attached to the CU die.  For now, assume
     that the descriptive type info is not available.  */
  return 0;

This will be adjusted later on, when support is added to GCC.

-- 
Joel