[Bug middle-end/51770] dump gimple lineno when dumping bb

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51770

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 55550
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55550&action=edit
Patch which will fix this

There are a few more tweaks I would like to make but I thought I post a first
pass patch here.
1) There is no documentation yet.
2) the style of file/line changes should be improved.
3) Still deciding if the only the line changes print file out again?