[PATCH] D30991: [Driver] Fix cross compiling with Visual Studio 2017

[Hamza Sood via Phabricator via cfe-commits]

hamzasood updated this revision to Diff 92050.
hamzasood added a comment.

@zturner: "it's just a vector of pointers"
Oh...... I was so focussed on reducing copies that I completely forgot it's just an array of pointers being copied, not the entire environment block contents. In that case, yeah. It's a dumb optimisation.

- setEnvironment is now just one function that accepts an ArrayRef.


https://reviews.llvm.org/D30991

Files:
  include/clang/Driver/Job.h
  lib/Driver/Job.cpp
  lib/Driver/ToolChains/MSVC.cpp

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