[PATCH] Driver: add support for linker file lists

[Rui Ueyama]

I first thought that GNU and Microsoft linker support a feature called "linker file lists", but they are actually not -- this patch is just to pass input file lists to subcommand using a response file. Is this understanding correct?

I think I don't have an ownership in this area. Hans was workikng on Clang driver, so reassigning to him.

http://reviews.llvm.org/D4104