Snippets for antlr 4.13.2 from Fedora ppc64le

Sourced from https://kojipkgs.fedoraproject.org/packages/antlr4-project/4.13.2/20.fc45/data/logs/ppc64le/build.log.

• /builddir/build/BUILD/antlr4-project-4.13.2-build/antlr4-4.13.2/runtime/Cpp/runtime/src/Vocabulary.cpp:12:18: warning: ‘antlr4::dfa::Vocabulary::EMPTY_VOCABULARY’ is deprecated: Use the default constructor of Vocabulary instead. [-Wdeprecated-declarations]
     12 | const Vocabulary Vocabulary::EMPTY_VOCABULARY;
        |                  ^~~~~~~~~~
  

• /builddir/build/BUILD/antlr4-project-4.13.2-build/antlr4-4.13.2/runtime/Cpp/runtime/src/tree/xpath/XPathLexer.cpp:158:48: warning: unused parameter ‘context’ [-Wunused-parameter]
    158 | void XPathLexer::IDAction(antlr4::RuleContext *context, size_t actionIndex) {
        |                           ~~~~~~~~~~~~~~~~~~~~~^~~~~~~