The documentation link of Google Test on GitHub have been moved to the
top-level docs directory.
Thus, the original link is invalid now.
Reviewed By: Pavel Labath
Differential Revision: https://reviews.llvm.org/D99559
Unit tests
----------
-Unit tests are written using `Google Test <https://github.com/google/googletest/blob/master/googletest/docs/primer.md>`_
-and `Google Mock <https://github.com/google/googletest/blob/master/googlemock/docs/for_dummies.md>`_
+Unit tests are written using `Google Test <https://github.com/google/googletest/blob/master/docs/primer.md>`_
+and `Google Mock <https://github.com/google/googletest/blob/master/docs/gmock_for_dummies.md>`_
and are located in the ``llvm/unittests`` directory.
In general unit tests are reserved for targeting the support library and other
generic data structure, we prefer relying on regression tests for testing