Merging r352610:

Merging r352610:
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r352610 | mgorny | 2019-01-30 09:20:24 +0100 (Wed, 30 Jan 2019) | 9 lines

[clang] [Driver] [NetBSD] Append -rpath for shared compiler-rt runtimes

Append appropriate -rpath when using shared compiler-rt runtimes,
e.g. '-fsanitize=address -shared-libasan'.  There's already a similar
logic in CommonArgs.cpp but it uses non-standard arch-suffixed
installation directory while we want our driver to work with standard
installation paths.

Differential Revision: https://reviews.llvm.org/D57303
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_80@352650 91177308-0d34-0410-b5e6-96231b3b80d8