[clang] Switch builtin strings to use string tables (PR #118734)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-arm64-windows-msvc` running on `linaro-armv8-windows-msvc-04` while building `clang` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/161/builds/3580

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

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'Clang-Unit :: DirectoryWatcher/./DirectoryWatcherTests.exe/5/8' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:C:\Users\tcwg\llvm-worker\clang-arm64-windows-msvc\stage1\tools\clang\unittests\DirectoryWatcher\.\DirectoryWatcherTests.exe-Clang-Unit-4944-5-8.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=8 GTEST_SHARD_INDEX=5 C:\Users\tcwg\llvm-worker\clang-arm64-windows-msvc\stage1\tools\clang\unittests\DirectoryWatcher\.\DirectoryWatcherTests.exe
--

Script:
--
C:\Users\tcwg\llvm-worker\clang-arm64-windows-msvc\stage1\tools\clang\unittests\DirectoryWatcher\.\DirectoryWatcherTests.exe --gtest_filter=DirectoryWatcherTest.DeleteWatchedDir
--
C:/Users/tcwg/llvm-worker/clang-arm64-windows-msvc/llvm/clang/unittests/DirectoryWatcher/DirectoryWatcherTest.cpp(259): error: Value of: WaitForExpectedStateResult.wait_for(EventualResultTimeout) == std::future_status::ready
  Actual: false
Expected: true
The expected result state wasn't reached before the time-out.

C:/Users/tcwg/llvm-worker/clang-arm64-windows-msvc/llvm/clang/unittests/DirectoryWatcher/DirectoryWatcherTest.cpp(262): error: Value of: TestConsumer.result().has_value()
  Actual: false
Expected: true


C:/Users/tcwg/llvm-worker/clang-arm64-windows-msvc/llvm/clang/unittests/DirectoryWatcher/DirectoryWatcherTest.cpp:259
Value of: WaitForExpectedStateResult.wait_for(EventualResultTimeout) == std::future_status::ready
  Actual: false
Expected: true
The expected result state wasn't reached before the time-out.

C:/Users/tcwg/llvm-worker/clang-arm64-windows-msvc/llvm/clang/unittests/DirectoryWatcher/DirectoryWatcherTest.cpp:262
Value of: TestConsumer.result().has_value()
  Actual: false
Expected: true



********************


```

</details>

https://github.com/llvm/llvm-project/pull/118734