Function rustc_lint::internal::typeck_results_of_method_fn

fn typeck_results_of_method_fn<'tcx>(
    cx: &LateContext<'tcx>,
    expr: &Expr<'_>
) -> Option<(Span, DefId, GenericArgsRef<'tcx>)>

Helper function for lints that check for expressions with calls and use typeck results to get the DefId and GenericArgsRef of the function.