[clang] [Clang] [C++26] Implement P1306R5 Expansion Statements (PR #165195)

[via cfe-commits]

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@@ -524,6 +525,354 @@ class CoreturnStmt : public Stmt {
   }
 };
 
+/// CXXExpansionStmt - Base class for an unexpanded C++ expansion statement.
+class CXXExpansionStmt : public Stmt {
+  friend class ASTStmtReader;
+
+  ExpansionStmtDecl *ParentDecl;
+  SourceLocation ForLoc;
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Sirraide wrote:

I mean, I guess we don’t need to store it; it doesn’t cost much imo, but I can remove it

https://github.com/llvm/llvm-project/pull/165195