Tests/CXXModulesCompile: shorten non-trivial-collation-order tests

The names broke the VS path length limit for Visual Studio.

Tests/RunCMake/CXXModulesCompile/RunCMakeTest.cmake

@@ -197,8 +197,8 @@ if ("named" IN_LIST CMake_TEST_MODULE_COMPILATION)
   run_cxx_module_test(object-library)
   run_cxx_module_test(generated)
   run_cxx_module_test(deep-chain)
-  run_cxx_module_test(non-trivial-collation-order)
-  run_cxx_module_test(non-trivial-collation-order-randomized)
+  run_cxx_module_test(non-triv-coll)
+  run_cxx_module_test(non-triv-coll-rando)
   run_cxx_module_test(duplicate)
   set(RunCMake_CXXModules_NO_TEST 1)
   run_cxx_module_test(imp-from-object)

Tests/RunCMake/CXXModulesCompile/non-triv-coll-rando/CMakeLists.txt

@@ -5,5 +5,5 @@ include("${CMAKE_SOURCE_DIR}/../cxx-modules-rules.cmake")
 
 set(non_trivial_collation_order_randomized TRUE)
 
-add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/../non-trivial-collation-order/"
-                 "${CMAKE_CURRENT_BINARY_DIR}/non-trivial-collation-order")
+add_subdirectory("${CMAKE_CURRENT_SOURCE_DIR}/../non-triv-coll/"
+                 "${CMAKE_CURRENT_BINARY_DIR}/non-triv-coll")