Function try_load_dead_code_graph_cache 

pub fn try_load_dead_code_graph_cache(
    prelude: &DeadCodeBackendPrelude<'_>,
    entry_points: &DeadCodeEntryPoints,
    modules: &[ModuleInfo],
) -> Option<(DeadCodeResolvedModules, DeadCodeGraphRun)>

Try loading the graph cache for an engine-owned dead-code pipeline.