[clang] [clang] Remove written template args from implicit var tpl spec (PR #156329)

[Erich Keane via cfe-commits]

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@@ -84,6 +84,9 @@ C++ Specific Potentially Breaking Changes
     static_assert((b.*mp)() == 1); // newly rejected
     static_assert((c.*mp)() == 1); // accepted
 
+- ``VarTemplateSpecializationDecl::getTemplateArgsAsWritten()`` method returns
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erichkeane wrote:

This isn't really a useful release note for someone who uses our compiler.  We have to explain WHAT is happening from a user perspective.

https://github.com/llvm/llvm-project/pull/156329