[clang] [AST] Only dump desugared type when visibly different (PR #65214)

[Aaron Ballman via cfe-commits]

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@@ -49,6 +49,28 @@ ABI Changes in This Version
 - Following the SystemV ABI for x86-64, ``__int128`` arguments will no longer
   be split between a register and a stack slot.
 
+AST Dumping Potentially Breaking Changes
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AaronBallman wrote:

Fantastic release note!!

https://github.com/llvm/llvm-project/pull/65214