tcu::TestExecutor used to provide all functionality required for
traversing hierarchy, executing tests, and even generating test case
lists. This change splits TestExecutor into three separate utilities:
1) TestHierarchyIterator provides test hierarchy traversal.
2) TestSessionExecutor provides test session execution.
3) Utility functions for generating test case list files.
In addition TestCaseWrapper has been replaced by package-specific
TestCaseExecutor with TestSessionExecutor-managed lifetime.
42 files changed