Fix comment typos related to printAsCXX

Author: hyp

include/swift/Basic/SupplementaryOutputPaths.h

@@ -39,7 +39,7 @@ struct SupplementaryOutputPaths {
   /// the header is emitted in single-file mode, since it needs whole-module
   /// information.
   ///
-  /// \sa swift::printAsCxx
+  /// \sa swift::printAsCXX
   std::string CxxHeaderOutputPath;
 
   /// The path to which we should emit a serialized module.

lib/FrontendTool/FrontendTool.cpp

@@ -193,7 +193,7 @@ static bool printAsObjCIfNeeded(StringRef outputPath, ModuleDecl *M,
 ///
 /// \returns true if there were any errors
 ///
-/// \see swift::printAsCxx
+/// \see swift::printAsCXX
 static bool printAsCxxIfNeeded(StringRef outputPath, ModuleDecl *M) {
   if (outputPath.empty())
     return false;