[clang] Reland [CUDA][HIP] Fix CTAD for host/device constructors (#168711) (PR #170481)

[via cfe-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc</summary>

```
FAILED: tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc
cd /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include/clang/Basic && /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang-tblgen -gen-clang-diags-defs -clang-component=Sema -I/home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include/clang/Basic -I/home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include/clang/Basic/Diagnostic.td --write-if-changed -o DiagnosticSemaKinds.inc -d DiagnosticSemaKinds.inc.d && /usr/bin/cmake -E cmake_transform_depfile Ninja gccdepfile /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include/clang/Basic /home/gha/actions-runner/_work/llvm-project/llvm-project/build /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include/clang/Basic /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/include/clang/Basic/DiagnosticSemaKinds.inc.d /home/gha/actions-runner/_work/llvm-project/llvm-project/build/CMakeFiles/d/e0a4ebe5e20b4d090b1c33d2a86afa6079d3259997d04bd3e58fb330d88a6ac0.d
Included from /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include/clang/Basic/Diagnostic.td:238:
/home/gha/actions-runner/_work/llvm-project/llvm-project/clang/include/clang/Basic/DiagnosticSemaKinds.td:2776:5: error: Diagnostics should not start with a capital letter; 'CUDA/HIP' is invalid
def warn_deduction_guide_target_attr_deprecated : Warning<
^
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/clang-tblgen: 1 errors.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/170481