Fix #14432

Author: ludviggunne

lib/tokenize.cpp

@@ -4862,7 +4862,7 @@ void Tokenizer::setVarIdPass1()
 
             if (decl) {
                 if (cpp) {
-                    for (const Token* tok3 = tok->next(); tok3->isName(); tok3 = tok3->next()) {
+                    for (const Token* tok3 = tok->next(); tok3 && tok3->isName(); tok3 = tok3->next()) {
                         addTemplateVarIdUsage(tok3->str(),
                                               mTemplateSimplifier->getUsedVariables(),
                                               variableMap.map(false),