[PATCH] [lld][ELF] Add linker script ENTRY command

[Rui Ueyama]

  So my understanding is that you are suggesting the following things.

   - Move _inputFieles out of TargetInfo, and
   - Change the signature of Drive::link() to the following

     bool Driver::link(TargetInfo targetInfo, InputFiles &inputs, raw_ostream &diagnostics);

     to (1) take a copy of TargetInfo, and (2) take InputFiles as a separate object. So that we can reuse TargetInfo for another call of link().

  Are these correct?

http://llvm-reviews.chandlerc.com/D833

BRANCH
  linker-script-entry

ARCANIST PROJECT
  lld