[clang] [llvm] [CUDA/HIP][SYCL] Deduplicate deferred diagnostics across multiple callers (PR #185926)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime-2` running on `rocm-worker-hw-02` while building `clang,llvm` at step 10 "Add check check-libc-amdgcn-amd-amdhsa".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/10/builds/24555

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 10 (Add check check-libc-amdgcn-amd-amdhsa) failure: test (failure)
...
[       OK ] LlvmLibcStdcHasSingleBitUllTest.OneHot (2 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[2440/3360] Running hermetic test libc.test.src.stdbit.stdc_bit_width_uc_test.__hermetic__
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcStdcBitWidthUcTest.Zero
[       OK ] LlvmLibcStdcBitWidthUcTest.Zero (1 us)
[ RUN      ] LlvmLibcStdcBitWidthUcTest.Ones
[       OK ] LlvmLibcStdcBitWidthUcTest.Ones (0 ns)
Ran 2 tests.  PASS: 2  FAIL: 0
[2441/3360] Running hermetic test libc.test.src.__support.FPUtil.rounding_mode_test.__hermetic__
FAILED: libc/test/src/__support/FPUtil/libc.test.src.__support.FPUtil.rounding_mode_test.__hermetic__.__cmd__ /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/__support/FPUtil/libc.test.src.__support.FPUtil.rounding_mode_test.__hermetic__.__cmd__ 
cd /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/__support/FPUtil && /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/bin/llvm-gpu-loader /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/__support/FPUtil/libc.test.src.__support.FPUtil.rounding_mode_test.__hermetic__.__build__
[==========] Running 5 tests from 1 test suite.
[ RUN      ] LlvmLibcFEnvImplTest.QuickRoundingUpTest
[       OK ] LlvmLibcFEnvImplTest.QuickRoundingUpTest (3 us)
[ RUN      ] LlvmLibcFEnvImplTest.QuickRoundingDownTest
[       OK ] LlvmLibcFEnvImplTest.QuickRoundingDownTest (1 us)
[ RUN      ] LlvmLibcFEnvImplTest.QuickRoundingNearestTest
[       OK ] LlvmLibcFEnvImplTest.QuickRoundingNearestTest (1 us)
[ RUN      ] LlvmLibcFEnvImplTest.QuickRoundingTowardZeroTest
[       OK ] LlvmLibcFEnvImplTest.QuickRoundingTowardZeroTest (2 us)
[ RUN      ] LlvmLibcFEnvImplTest.QuickGetRoundTest
[       OK ] LlvmLibcFEnvImplTest.QuickGetRoundTest (1 us)
Ran 5 tests.  PASS: 5  FAIL: 0
[2442/3360] Linking CXX executable libc/test/src/math/smoke/libc.test.src.math.smoke.atan_test.__hermetic__.__build__
[2443/3360] Linking CXX executable libc/test/src/math/smoke/libc.test.src.math.smoke.acoshf16_test.__hermetic__.__build__
[2444/3360] Running hermetic test libc.test.src.math.smoke.remquof_test.__hermetic__
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcRemQuoTest.SpecialNumbers
[       OK ] LlvmLibcRemQuoTest.SpecialNumbers (7 us)
[ RUN      ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator
[       OK ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator (3 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[2445/3360] Running hermetic test libc.test.src.math.smoke.remquol_test.__hermetic__
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcRemQuoTest.SpecialNumbers
[       OK ] LlvmLibcRemQuoTest.SpecialNumbers (8 us)
[ RUN      ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator
[       OK ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator (4 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[2446/3360] Running hermetic test libc.test.src.math.smoke.remquo_test.__hermetic__
FAILED: libc/test/src/math/smoke/libc.test.src.math.smoke.remquo_test.__hermetic__.__cmd__ /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/math/smoke/libc.test.src.math.smoke.remquo_test.__hermetic__.__cmd__ 
cd /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/math/smoke && /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/bin/llvm-gpu-loader /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/runtimes/runtimes-amdgcn-amd-amdhsa-bins/libc/test/src/math/smoke/libc.test.src.math.smoke.remquo_test.__hermetic__.__build__
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcRemQuoTest.SpecialNumbers
[       OK ] LlvmLibcRemQuoTest.SpecialNumbers (8 us)
[ RUN      ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator
[       OK ] LlvmLibcRemQuoTest.EqualNumeratorAndDenominator (4 us)
Ran 2 tests.  PASS: 2  FAIL: 0

```

</details>

https://github.com/llvm/llvm-project/pull/185926