[clang] [clang] Implement StmtPrinter for EmbedExpr (PR #135957)

[via cfe-commits]

llvmbot wrote:

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Failed to cherry-pick: 40417915a161e87b398f1cc3e9b7c159207abd77

https://github.com/llvm/llvm-project/actions/runs/15489828093

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/135957