[RemoteAST] Improve resolution of private types from metadata #22118
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When -enable-anonymous-context-mangled-names is provided, emit mangled names as part of the metadata of an anonymous context. This will allow us to match textual mangled names to the metadata. This is a backward-compatible ABI extension. Part of rdar://problem/38231646/.
Including the mangled names in anonymous context metadata can bloat code size, and is not needed for normal runtime resolution. However, it aids debugging, so have -g implies the emission of this extra metadata, which is always optional.
…te types. When an anonymous context descriptor provides a mangled name, use that mangled name to provide the private declaration name for its child context. This allows us to resolve private type names correctly when the corresponding anonymous context has its mangled name. Fixes rdar://problem/38231646.
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@swift-ci please test |
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