[Macros] Ensure that we find operators in any macro-expanded context. #68085
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In any nominal declaration or extension thereof that is produced by a macro expansion, make sure we perform qualified name lookup when resolving operators so that we're guaranteed to find the macro-introduced operators. Otherwise, expanding a macro that defines a new type with conformances involving operators doesn't work. Fixes rdar://114257019,
DougGregor
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AnthonyLatsis,
hborla and
slavapestov
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In any nominal declaration or extension thereof that is produced by a macro expansion, make sure we perform qualified name lookup when resolving operators so that we're guaranteed to find the macro-introduced operators. Otherwise, expanding a macro that defines a new type with conformances involving operators doesn't work.
Fixes rdar://114257019,