[PATCH] [lld][PECOFF] Support IMAGE_REL_I386_DIR32 relocation.

[Rui Ueyama]

  Ah right. Then we could name it AtomSection but that name does not sounds very right to me in this file. Let me revert the name change.

http://llvm-reviews.chandlerc.com/D985

BRANCH
  reloc

ARCANIST PROJECT
  lld