[compiler] Add fault tolerance test fixtures#568

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everettbu wants to merge 8 commits into

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Commits on Feb 21, 2026

[compiler] Add fault tolerance plan document
josephsavona
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[compiler] Phase 1: Add error accumulation infrastructure to Environment
josephsavona
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[compiler] Phase 2+7: Wrap pipeline passes in tryRecord for fault tolerance
josephsavona
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[compiler] Phase 4 (batch 1): Update validation passes to record errors on env
josephsavona
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[compiler] Phase 4 (batch 2), 5, 6: Update remaining passes for fault tolerance
josephsavona
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[compiler] Phase 8: Add multi-error test fixture and update plan
josephsavona
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[compiler] Phase 3: Make lower() always produce HIRFunction
josephsavona
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[compiler] Add fault tolerance test fixtures
josephsavona
committed