tests: make kyty_tests build and run every test without LTO (#1110)

avplayer_file_tests compiles libs/avPlayer.cpp into the test, and its
PRINT_NAME() calls Loader::Timer::GetTimeMs(). Add loader/timer.cpp to the
target, like the other tests that compile HLE library sources. CI links the
test with LTO, which drops the unused reference, so the failure only shows
in non-LTO builds such as the README's no-Qt instructions.

Clang with libstdc++ rejects optional<IndirectDescriptor>::emplace() with
no arguments in ShaderRecompilerComputeTests.cpp. Assign the descriptor the
same way the neighbouring test does.

trophy_system is registered with ctest but kyty_tests did not build its
executable, so ctest reported it as Not Run.

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/ShaderRecompilerComputeTests.cpp

@@ -33541,7 +33541,8 @@ void CheckIndirectBufferStore(VulkanHarness &vulkan) {
   candidate.indirect_search_iterations = 0;
   candidate.indirect_resources.clear();
   program.descriptor_sources.resize(1);
-  program.descriptor_sources[0].indirect_descriptor.emplace().table_stride = 16;
+  program.descriptor_sources[0].indirect_descriptor =
+      DescriptorSource::IndirectDescriptor{.table_stride = 16};
   ShaderComputeInputInfo compute;
   compute.wave_size = 32;
   compute.host_subgroup_size = vulkan.SubgroupSize();