test_handler CTS failure with assertion in DeviceKernelInfo::setCompileTimeInfoIfNeeded

[sergey-semenov]

Describe the bug

test_handler CTS fails in nightly testing with the following assertion:

sycl/source/detail/device_kernel_info.cpp:71: void sycl::_V1::detail::DeviceKernelInfo::setCompileTimeInfoIfNeeded(const sycl::_V1::detail::compile_time_kernel_info_v1::CompileTimeKernelInfoTy&): Assertion `Info == *this' failed.

So far the issue appears to be that two different unnamed lambda kernels from two different tests end up getting mapped to the same kernel name:

_ZTSZZL22CATCH2_INTERNAL_TEST_4vENKUlRN4sycl3_V17handlerENS0_8accessorIiLi1ELNS0_6access4modeE1026ELNS4_6targetE2014ELNS4_11placeholderE0ENS0_3ext6oneapi22accessor_property_listIJEEEEEE1_clES2_SC_EUlT_E_

I'm not familiar enough with the Catch2 framework, but AFAIU, CATCH2_INTERNAL_TEST_4 is supposed to be a unique name. However, it ends up being shared by two different tests, so one of them ends up calling the kernel from the other. So far, it appears to be a test issue.

This doesn't cause the test failure without the assertion, since the kernels are functionally identical and don't perform any meaningful work on the device.

[steffenlarsen]

May be related to #10659.

[againull]

Expected to be fixed by #20135

[sycloid]

Also see #20132 where the assertion was encountered in Python native extension, no Catch2 used.