Reproduction link or steps

@__NO_SIDE_EFFECTS__ works for namespace imports when Rolldown can inline/collapse the namespace in a single chunk, but fails when the same namespace-member call crosses a chunk boundary.

What is expected?

@__NO_SIDE_EFFECTS__ should apply consistently to calls of the annotated exported binding, even when the call is made through a namespace import and the imported module is emitted as a shared chunk.

What is actually happening?

In split/shared output, the calls remain.

https://repl.rolldown.rs/#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

System Info

System:
    OS: macOS 26.5.1
    CPU: (12) arm64 Apple M2 Max
    Memory: 156.33 MB / 32.00 GB
    Shell: 4.6.0 - /etc/profiles/per-user/fubhy/bin/fish
  Binaries:
    Node: 24.15.0 - /nix/store/3mvbmkd7lmxi3xlka1avra24flwbgjv9-nodejs-24.15.0/bin/node
    npm: 11.12.1 - /nix/store/3mvbmkd7lmxi3xlka1avra24flwbgjv9-nodejs-24.15.0/bin/npm
    pnpm: 11.4.0 - /nix/store/l3awryym5fh66w3ilk9f1gcxkq06fi2r-corepack-0.35.0/bin/pnpm
    bun: 1.3.13 - /nix/store/jgl1hjr0cf6s32jcnqmkp44av4flamap-bun-1.3.13/bin/bun
    Deno: 2.8.3 - /nix/store/a9avpz7i9y2yjhmdimq719ih6wbb4s0p-deno-2.8.3/bin/deno
  npmPackages:
    rolldown: workspace:* => 1.1.2

Any additional comments?

cross_module_optimization.rs only checks identifier callees for SideEffectsFreeFunction, so calls that remain as namespace-member imports across chunks are missed.