CMake test failures

[berquist]

This might be a catch-all for getting the CMake build up to test parity with the autotools build.

On macOS 13.4.1 (M2 Max) with Apple Clang 14.0.3 and Spack-provided OpenMPI 4.1.5, I'm getting

testsuite_default_Links.testcase_Links
 - FAILED  : test_Links_dangling (testsuite_default_Links.testcase_Links.test_Links_dangling)
 - FAILED  : test_Links_wrong_port (testsuite_default_Links.testcase_Links.test_Links_wrong_port)

testsuite_default_MemPoolTest.testcase_StatisticComponent
 - FAILED  : test_MemPool_overflow (testsuite_default_MemPoolTest.testcase_StatisticComponent.test_MemPool_overflow)
 - FAILED  : test_MemPool_undeleted_items (testsuite_default_MemPoolTest.testcase_StatisticComponent.test_MemPool_undeleted_items)

testsuite_default_StatisticsComponent.testcase_StatisticComponent
 - FAILED  : test_StatisticsBasic (testsuite_default_StatisticsComponent.testcase_StatisticComponent.test_StatisticsBasic)

• test_StatisticsBasic fails for me as well with the autotools build (test_StatisticsComponent_basic failure on M2 Mac #967), so not unique to CMake.
• The two links tests fail with an additional line in stderr: Backtrace not available on this build/platform..
• The two MemPool tests fail with similar errors, so only including one:

diff --git a/Users/ejberqu/development/sst/github/sst-core/tests/refFiles/test_MemPool_undeleted_items.out b/Users/ejberqu/development/sst/github/sst_test_outputs/run_data/test_MemPool_undeleted_items.out
index 81caefd..14d9835 100644
--- a/Users/ejberqu/development/sst/github/sst-core/tests/refFiles/test_MemPool_undeleted_items.out
+++ b/Users/ejberqu/development/sst/github/sst_test_outputs/run_data/test_MemPool_undeleted_items.out
@@ -1,16 +1,24 @@
-# Event rate = 8.568284 Mmsgs/s
-Simulation is complete, simulated time: 10 us
+Valid SubComponents: SubCompReceiver
+SubCompSendRecv
+SubCompSender
+SubCompSlot
+message_mesh.message_port
+message_mesh.port_slot
+message_mesh.route_message
+Valid Components: StatisticsComponent.float
+StatisticsComponent.int
+SubComponentLoader
+coreTestClockerComponent
+coreTestComponent
+coreTestDistribComponent
+coreTestLinks
+coreTestMessageGeneratorComponent
+coreTestParamComponent
+coreTestPerfComponent
+coreTestRNGComponent
+coreTestSerialization
+coreTestSharedObjectsComponent
+message_mesh.enclosing_component

-Undeleted Mempool Items:
-  MemPoolTestEvent2 to be delivered at 1000
-  MemPoolTestEvent2 to be delivered at 1000
-  MemPoolTestEvent2 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
-  MemPoolTestEvent1 to be delivered at 1000
+FATAL:  SST Core: can't find requested component or subcomponent 'coreTestElement.memPoolTestComponent'
+ Backtrace not available on this build/platform.

These tests also fail in a CentOS 8-based runner with GCC 8.4.1, so are likely CMake-specific and not OS or compiler dependent.

[berquist]

Done in #970.