Merge pull request #8408 from PatriosTheGreat/master

Fix -Wsuggest-destructor-override for generated C++ proto classes.

Author: acozzette

src/google/protobuf/any.pb.h

@@ -1092,7 +1092,7 @@ void MessageGenerator::GenerateClassDefinition(io::Printer* printer) {
 
   format(
       "inline $classname$() : $classname$(nullptr) {}\n"
-      "virtual ~$classname$();\n"
+      "~$classname$() override;\n"
       "explicit constexpr "
       "$classname$(::$proto_ns$::internal::ConstantInitialized);\n"
       "\n"