Expand description
Parser::report (Ast/src/Parser.cpp:5194).
Hand-ported: the base error-reporting method that every reportXError
funnels into. The C++ va_list overload and the variadic ... wrapper both
collapse to a single Rust method taking core::fmt::Arguments (callers pass
format_args!(...), so vformat is already applied at the call site). This
is ranked far after its callers because the varargs call edges were not
linked in the graph, so it is hand-ported here to unblock them.