Refactor DownlevelLibraryImportGenerator to inject types via RegisterPostInitializationOutput#126056

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jkoritzinsky merged 7 commits intomainfrom

copilot/adjust-downlevel-library-import-generator

Mar 31, 2026

Commits on Mar 19, 2026

Use RegisterPostInitializationOutput in DownlevelLibraryImportGenerator to inject internal LibraryImportAttribute and StringMarshalling definitions

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Add nullable restore to generated types, improve test rigor for no-import downlevel test

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Commits on Mar 20, 2026

Commits on Mar 23, 2026

Remove #nullable restore from GeneratedInteropTypes (no effect at end of file)

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Commits on Mar 24, 2026

Apply review feedback: fix brittle tree count assertion, add CannotForwardToDllImport downlevel test

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Commits on Mar 28, 2026

Remove downlevel code snippet
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