Issue:
------
Running MTR with the --no-reorder option by specifying test cases on the
command line, without prefixing the suite name results in an error saying the
test case was not found in the main suite. This is because MTR looks for the
test case only in the main suite, and no other suites.

Fix:
----
The fix involves searching for the test in every suite if only the test name
is specified. This back-ports two bug fixes: Bug#24967869 and Bug#24365783
Reviewed-by: Pavan Naik <pavan.naik@oracle.com>
RB: 16812