Propagate actual error info when loading a TPA assembly fails with `FileNotFoundException`#126782

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elinor-fung wants to merge 17 commits intodotnet:mainfrom

elinor-fung:copilot/improve-fnfe-diagnostics

Commits on Apr 11, 2026

Add tests for TPA assembly load failures

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Change FusionLog back to get-only auto-property

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Copilot
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Simplify EEFileLoadException: delegating ctor and throw site

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Copilot
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Add newline separators between diagnostic messages

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Move Init failure diagnostic next to the Init call

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Fix test comments to match actual build mechanism

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Copilot
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Commits on Apr 15, 2026

Commits on Apr 16, 2026

Fix test failures: ensure DLLs removed before test payload packaging

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Copilot
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Commits on Apr 22, 2026

Move diagnostic info into BindResult struct

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Copilot
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Commits on Apr 24, 2026