[clang] [Clang] Fix Itanium mangling crash for local lambda in ctor/dtor (PR #181068)

[via cfe-commits]

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@@ -514,6 +514,10 @@ class CXXNameMangler {
   void mangleUnscopedTemplateName(GlobalDecl GD, const DeclContext *DC,
                                   const AbiTagList *AdditionalAbiTags);
   void mangleSourceName(const IdentifierInfo *II);
+  void mangleConstructorName(const NamedDecl *ND,
+                             const AbiTagList *AdditionalAbiTags);
+  void mangleDestructorName(const NamedDecl *ND,
+                            const AbiTagList *AdditionalAbiTags);
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eiytoq wrote:

I think that can be a separate NFC PR, since many places use a pointer.

https://github.com/llvm/llvm-project/pull/181068