[CMake] Print out the list of sanitizers that the sanitizer_common tests will run against.
[CMake] Print out the list of sanitizers that the sanitizer_common tests will run against.

Summary:
This is a change requested by Vitaly Buka as prerequisite to landing
https://reviews.llvm.org/D55740.

Reviewers: vitalybuka, kubamracek

Subscribers: mgorny, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D55939

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@349897 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt