Egor Zhdan b50955144e [cxx-interop] Clone all of the attributes from base method correctly ...

If a C++ `struct Base` declares a method with a Clang attribute that Swift is able to import, and `struct Derived` inherits from `Base`, the method should get cloned from `Base` to `Derived` with its attributes.

Previously we were only cloning one attribute at most due to a bug in `cloneImportedAttributes`. DeclAttributes is an intrusively linked list, and it was being made invalid while iterating over it: `otherDecl->getAttrs().add(attrs)` iterates over the list and calls `otherDecl->add(eachElement)`, which invalidates the iterator after the first iteration.

2024-07-08 15:48:20 +01:00

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