[flang-commits] [flang] [Flang] Fix -Wopen-mp-* and -Wopen-acc-* flag spellings (PR #188434)

[Tarun Prabhu via flang-commits]

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@@ -148,6 +148,19 @@ class LanguageFeatureControl {
   void AddAlternativeCliSpelling(UsageWarning w, std::string input) {
     cliOptions_.insert({input, {w}});
   }
+  void AddDeprecatedCliSpelling(
+      LanguageFeature f, std::string deprecated, std::string canonical) {
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tarunprabhu wrote:

A common pattern in LLVM is to pass `StringRef` instead of `const std::string&`. It would give us some of the `StringRef` methods that are not yet available in `std::string`.

https://github.com/llvm/llvm-project/pull/188434