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RFM: fixture-closure-union-emit suspected superlinear cost - #13608

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rfm/fixture-closure-union-emit-cost

Commits on Oct 9, 2026
- RFM: fixture-closure-union-emit suspected superlinear cost
  
  Brian Searls
  and
  claude
  committed
  c6af5da
- emit_rust: locate the module through ModuleIndex.by_name, not a per-module scan of every typed module
  
  Brian Searls
  and
  claude
  committed
  23f2d08
- required floor: print fixture-closure-union-emit begin line (members, outside_prepared) before the union compile
  
  Brian Searls
  and
  claude
  committed
  b99d9af
- union-emit receipt: permanent per-stage lines (compile-done, exclusion-done, emit-done) with members and wall_ms
  
  Brian Searls
  and
  claude
  committed
  cbd2b9c
- union-emit stage lines: printed by the floor runner via a stage observer (library crate may not eprintln)
  
  Brian Searls
  and
  claude
  committed
  c7c3ef7
- emit_rust: is_known_variant reads the carried variant_to_enum instead of scanning every type summary
  
  Brian Searls
  and
  claude
  committed
  8ff94ca