[DebugInfo] Handle types with @_originallyDefinedIn in DebugInfo #77290
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When processing a nominal type that has the @_originallyDefinedIn attribute, IRGenDebugInfo emits a forward declaration of the type as a child of the original module, and the type with a specification pointing to the forward declaration. We do this so LLDB has enough information to both find the type in reflection metadata (the parent module name) and find it in the swiftmodule (the module name in the type mangled name). rdar://137146961
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adrian-prantl
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Oct 30, 2024
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When processing a nominal type that has the @_originallyDefinedIn attribute, IRGenDebugInfo emits a forward declaration of the type as a child of the original module, and the type with a specification pointing to the forward declaration. We do this so LLDB has enough information to both find the type in reflection metadata (the parent module name) and find it in the swiftmodule (the module name in the type mangled name).
rdar://137146961