Function default_symbol_resolver 

pub fn default_symbol_resolver<'a>(
    repo: &'a dyn Repo,
    extensions: &[impl AsRef<dyn SymbolResolverExtension>],
    id_prefix_context: &'a IdPrefixContext,
) -> SymbolResolver<'a>

Wraps the given IdPrefixContext in SymbolResolver to be passed in to evaluate().