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ActiveAIRelease4.8

viable/strict/1788515410: BE: Raise NotImplementedError for unsupported linalg dtypes (#192352)

What happened

Linalg and norm ops reject integer/bool input and unsupported half precision with a plain RuntimeError, but could support them via promotion, so raise NotImplementedError. Covers checkFloatingOrComplex, torch.norm, linalg.vander and the ref-side helpers. Authored with the assistance of Claude (Claude Code). Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com Pull Request resolved: #192352 Approved by: https://gith…

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