Merge google -> main (#4659)

* 697c30859 Synchronize submodules with LLVM at llvm/llvm-project@b92a39ac1319
* 19c7fb7bb Integrate LLVM at llvm/llvm-project@b92a39ac1319
* fc17abeac Integrate LLVM at llvm/llvm-project@081c1db02dd2
* aec5174d1 Merge pull request #4655 from NatashaKnk:main-to-google
* ee9a9cb6b Integrate LLVM at llvm/llvm-project@e29552c5aff6