[llvm-branch-commits] [clang] [polly] release/18.x: [clang-format] Revert breaking stream operators to prev… (PR #89492)

[Owen Pan via llvm-branch-commits]

owenca wrote:

@tstellar below is the release notes for clang-format 18.1.5.
- Restores clang-format behavior that always breaks before a stream insertion operator (`<<`) when both operands are string literals.
- Fixes clang-format regressions in annotating initialization list braces and trailing return type arrow, and breaking after the block comment before a function argument.

https://github.com/llvm/llvm-project/pull/89492