Fix break in recoverFromError block in C++ template (#86)

Author: secretlyshannon

gen/templates/cc_parser_cc.go.tmpl

@@ -586,8 +586,8 @@ bool Parser::recoverFromError({{template "LexerClass"}}& lexer, std::vector<stac
     return false;
   }
 
-  for (int32_t v : afterErr) {
-    recover_tokens[v] = true;
+  for (Token v : afterErr) {
+    recover_tokens[static_cast<int32_t>(v)] = true;
   }
   if (next_symbol_.symbol == noToken) {
     fetchNext(lexer, stack);
@@ -1059,4 +1059,4 @@ absl::Status Parser::Parse(int{{$stateType}}_t start, int{{$stateType}}_t end,
 {{ else -}}
 {{ template "customReportNext" . -}}
 {{ end -}}
-{{ end -}}
+{{ end -}}