[clang] [APINotes] Upstream the remaining API Notes fixes and tests (PR #84773)

[Saleem Abdulrasool via cfe-commits]

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@@ -0,0 +1,4 @@
+Name: SomeBrokenLib
+Functions:
+  - Name: do_something_with_pointers
+    Nu llabilityOfRet: O
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compnerd wrote:

Is it possible to comment that the space here is intentional? Particularly with this diff, it was difficult to verify until you get to the end.

https://github.com/llvm/llvm-project/pull/84773