Christian Blichmann a574b66e99 Do not add third_party test targets in CMake build
This way, one can just run `ctest .` in the build directory and it will only
run Sandboxed API and Sandbox2 tests.

PiperOrigin-RevId: 321342543
Change-Id: I42537e64bfb3127dca00bd92a3f7b35ca64004d9
2020-07-15 05:31:50 -07:00
..