[clang] [RFC] Initial implementation of P2719 (PR #113510)

[Aaron Ballman via cfe-commits]

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@@ -9753,27 +9753,46 @@ def err_operator_new_delete_invalid_result_type : Error<
 def err_operator_new_delete_dependent_result_type : Error<
   "%0 cannot have a dependent return type; use %1 instead">;
 def err_operator_new_delete_too_few_parameters : Error<
-  "%0 must have at least one parameter">;
+  "%select{|type aware }0%select{|destroying }1%2 must have at least %select{|one|two|three|four|five}3 parameter%s3">;
 def err_operator_new_delete_template_too_few_parameters : Error<
   "%0 template must have at least two parameters">;
 def warn_operator_new_returns_null : Warning<
   "%0 should not return a null pointer unless it is declared 'throw()'"
   "%select{| or 'noexcept'}1">, InGroup<OperatorNewReturnsNull>;
 
 def err_operator_new_dependent_param_type : Error<
-  "%0 cannot take a dependent type as first parameter; "
-  "use size_t (%1) instead">;
+  "%select{|type aware }0%select{|destroying }1%2 cannot take a dependent type as its %select{first|second|third|fourth|fifth}3 parameter; "
+  "use %5 (%4) instead">;
 def err_operator_new_param_type : Error<
-  "%0 takes type size_t (%1) as first parameter">;
+  "%select{|type aware }0%select{|destroying }1%2 takes type %5 (%4) as %select{first|second|third|fourth|fifth}3 parameter">;
 def err_operator_new_default_arg: Error<
   "parameter of %0 cannot have a default argument">;
 def err_operator_delete_dependent_param_type : Error<
-  "%0 cannot take a dependent type as first parameter; use %1 instead">;
+  "%select{|type aware }0%select{|destroying }1%2 cannot take a dependent type as its %select{first|second|third|fourth|fifth}3 parameter; "
+  "use %4 instead">;
 def err_operator_delete_param_type : Error<
-  "first parameter of %0 must have type %1">;
+  "%select{first|second|third|fourth|fifth}3 parameter of%select{| type aware}0%select{| destroying}1 %2 must have type %4">;
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AaronBallman wrote:

If we wanted to keep it, we should use `%ordinal` instead.

https://github.com/llvm/llvm-project/pull/113510