[Macros] Expand nested macros in qualified name lookup. #71407
Merged
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populateLookupTableEntryFromMacroExpansions
expands macros that can introduce a given name into the type or extension that we're performing qualified lookup into. However, it only handled one level of macro expansion; it failed to expand any nested macros that can introduce the given name. This change applies the same logic to nested macros to ensure that qualified name lookup doesn't fail when the declaration is produced through several levels of macro expansion.Resolves rdar://121882362