[4/6][PATCH] Fix issue from GCC PR47527: no ELF flags, EABI attribs, etc. in dummy IR BFD.

[Dave Korn]

    Hi list,

  The dummy IR BFDs added by the plugin API don't have any format-specific
contents, such as ELF attributes and ARM EABI versions.  This was causing
lang_check to barf on imaginary merging problems; avoided by not performing
the checks on IR files.

ld/ChangeLog:

2011-02-20  Dave Korn  <...

	* ldlang.c (lang_check): Don't run checks on dummy IR BFDs.


    cheers,
      DaveK