Update to reflect changes in LLVM.

llvm/Support/PathV1.h was removed in LLVM r184960.

git-svn-id: http://include-what-you-use.googlecode.com/svn/trunk@473 812d1f90-f944-d88a-411a-122bdc93e1ea
Initialize native target, which is necessary for inline assembly parsing.

git-svn-id: http://include-what-you-use.googlecode.com/svn/trunk@474 812d1f90-f944-d88a-411a-122bdc93e1ea