File index given line (libdw)

[Mark Wielaard]

On Fri, 2017-07-21 at 21:29 +0200, Mark Wielaard wrote:
> But I was working on adding support for DWARF5 .debug_lines and since
> files (and directories) can have arbitrary attributes in that version it
> makes sense to go from Dwarf_Line to the associated Dwarf_Files/index.
> Instead of duplicating the accessor functions (like we now have both
> dwarf_filesrc and dwarf_linesrc).
> 
> Note that I changed the name to dwarf_line_file. (Dropping the s.)

I pushed this new function to git master now.

Cheers,

Mark