Function set_defined

fn set_defined<'a, MS: STeXModuleStore, Err: FnMut(String, SourceRange<LSPLineCol>, DiagnosticLevel)>(
    symbol: &SymbolReference<LSPLineCol>,
    range: SourceRange<LSPLineCol>,
    groups: &mut Vec<STeXGroup<'a, MS, LSPLineCol, Err>>,
)