Findit plans to support a set of cmd flag aliases, so we need test runners to support them as well.

The aliases are:
1. --isolated-script-test-filter=A::B::C
  a. Current cmd flag(alias) is: --gtest_filter=A:B:C
2. --isolated-script-test-repeat=30
  a. Current cmd flag(alias) is:--gtest_repeat=30
  b. To be consistent with currently supported test types, the exec 
     order should be ABCABCABC...
3. --isolated-script-test-launcher-retry-limit=0
  a. Current cmd flag(alias) is:--test-launcher-retry-limit=0
4. --isolated-script-test-also-run-disabled-tests
  a. Current cmd flag(alias) is:--gtest_also_run_disabled_tests