[CMake] Dependencies for tests in "runtimes"

[CMake] Dependencies for tests in "runtimes"

Many of the test cases in the runtimes require LLVM's testing tools, to
facilitate this working as expected we need to have all the test targets
in the runtimes depend on all LLVM testing tools used in the runtimes.

Differential Revision: https://reviews.llvm.org/D33048

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307572 91177308-0d34-0410-b5e6-96231b3b80d8