SILGen: Don't reference external property descriptors for @_alwaysEmitIntoClient properties. #59213
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…tIntoClient properties. Their definition is fully visible to clients to be copied into them, and there isn't necessarily a symbol for the property descriptor in the defining module, so it isn't necessary or desirable to try to use a property descriptor with them. Trying to reference the descriptor leads to missing symbol errors at load time when trying to use keypaths with older versions of the defining dylib, which goes against the purpose of `@_alwaysEmitIntoClient` meaning "no ABI liabilities for the defining module". Fixes rdar://94049160.
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@swift-ci Please test |
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Their definition is fully visible to clients to be copied into them, and there isn't necessarily
a symbol for the property descriptor in the defining module, so it isn't necessary or desirable to
try to use a property descriptor with them. Trying to reference the descriptor leads to missing
symbol errors at load time when trying to use keypaths with older versions of the defining dylib,
which goes against the purpose of
@_alwaysEmitIntoClientmeaning "no ABI liabilities for thedefining module". Fixes rdar://94049160.