[NewPM] Add -fsanitize={memory,thread} handling to clang
[NewPM] Add -fsanitize={memory,thread} handling to clang

Summary: This is the missing bit to drive thread and memory sanitizers through clang using the new PassManager.

Reviewers: chandlerc, fedor.sergeev, vitalybuka, leonardchan

Subscribers: bollu, llvm-commits

Differential Revision: https://reviews.llvm.org/D56831

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@351423 91177308-0d34-0410-b5e6-96231b3b80d8

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