[RFC PATCH] Emit DW_LANG_Fortran{03,08}

[Cary Coutant]

>> did with -gdwarf-4). We're still putting a version number of 2 in the
>> compilation unit header! But I guess even upgrading the CU header to
>
> We are not.  On most targets we default to -gdwarf-4 and emit v. 4:

Oops, sorry, you're right. I carelessly misread this:

  dw2_asm_output_data (2, ver, "DWARF version number");

and read the "2" as the version, not the size. As long as we're
capping the version number at 4 until we can actually write a proper
version 5 header, this is fine.

-cary