Mike Ash 270ddf6bf4 [IRGen] Emit a pointer from nominal type descriptor to concrete metadata. ...

This allows external tools to locate the metadata pointer without needing to call the accessor function.

This is only useful for non-generic types, so we borrow the HasCanonicalMetadataPrespecializations flag to indicate the presence of this pointer on non-generic types, and it continues to indicate the presence of prespecializations for generic types.

Only emit this pointer for internal/private types with no runtime initialization. Public type metadata can be found with the symbol, and it's not useful for types that require runtime initialization.

2025-02-27 17:48:37 -05:00

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