Merge pull request #6238 from hughbe/stubs-clang-cl

Fix documentation warnings building runtime with clang-cl

Author: slavapestov

stdlib/public/stubs/UnicodeNormalization.cpp

@@ -23,11 +23,16 @@
 #include <mutex>
 #include <assert.h>
 
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdocumentation"
+
 #include <unicode/ustring.h>
 #include <unicode/ucol.h>
 #include <unicode/ucoleitr.h>
 #include <unicode/uiter.h>
 
+#pragma clang diagnostic pop
+
 #include "../SwiftShims/UnicodeShims.h"
 
 static const UCollator *MakeRootCollator() {