[llvm] [NFC][Support] Create helper function to parse bool. (PR #102818)

[Rahul Joshi via llvm-commits]

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@@ -400,6 +400,22 @@ class CommandLineParser {
   SubCommand *LookupSubCommand(StringRef Name, std::string &NearestString);
 };
 
+template <typename T, T TrueVal, T FalseVal>
+bool parseBool(Option &O, StringRef ArgName, StringRef Arg, T &Value) {
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jurahul wrote:

Done.

https://github.com/llvm/llvm-project/pull/102818