[ASan] Support for cmake build of ASan unittests in 32-bit LLVM build. Currently, to run ASan unit tests both for 32- and 64 bits one has to maintain two distinct LLVM builds. In a bright future, we'd like to use a single build for this

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@160666 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed