[clang] [serialization] No transitive type change (PR #92511)

[Ilya Biryukov via cfe-commits]

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@@ -44,10 +44,6 @@ export inline int getA() {
     return 43;
 }
 
-export inline int getA2(int) {
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ilya-biryukov wrote:

I am not sure why we update the tests here. Could you clarify this, maybe in the final commit description too?
(I suspect something along the lines of "we used to ignore the added declaration, but had to go with the same name and type to avoid adding new types and now it's not a problem", but just wanted to confirm).

https://github.com/llvm/llvm-project/pull/92511