[clang] [clang][Sema] Re-use existing BinaryOperator if possible (PR #90625)

[Youngsuk Kim via cfe-commits]

JOE1994 wrote:

Buildkite passed on Linux x64 but failed on Windows x64 .
Test log doesn't show any test failures except for `XFAIL` runs, so I'm not sure what's causing the failure.

Will rebase onto latest `main` to try the build again.



https://github.com/llvm/llvm-project/pull/90625