K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2019-03-31T06:21:32.071972Z
K 7
svn:log
V 864
Use the test engine interface plain for some googlemock/googletest provided tests

The issues are as follows:
i.   Some tests don't execute `RUN_ALL_TESTS()`.
ii.  Some tests incorrectly analyze the results when `--gtest_list_tests` is
     specified on the command line.
iii. Some tests assume all tests are run (in order to analyze the results at
     the end of the test program as part of Environment::TearDown()).

The above items cause Kyua googletest engine to bail, since there is spurious
output on the command line (in the case of i. and ii.), or failures/asserts are
needlessly triggered (in the case of iii.).

Add comments noting why the testcases cannot use the googletest interface, along
with their respective googletest issues.

Case ii:  https://github.com/google/googletest/issues/2204
Case iii: https://github.com/google/googletest/issues/2205

END