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

[via cfe-commits]

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@@ -416,9 +420,10 @@ def warn_cxx98_compat_for_range : Warning<
   "range-based for loop is incompatible with C++98">,
   InGroup<CXX98Compat>, DefaultIgnore;
 def err_for_range_identifier : Error<
-  "range-based for loop requires type for loop variable">;
+  "%select{range-based for loop|expansion statement}0 requires "
+  "type for %select{loop|expansion}0 variable">;
 def err_for_range_expected_decl : Error<
-  "for range declaration must declare a variable">;
+  "%select{for range|expansion statement}0 declaration must declare a variable">;
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Sirraide wrote:

I’ll add some

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