pub(crate) fn handle_call_hierarchy_outgoing(
snap: GlobalStateSnapshot,
params: CallHierarchyOutgoingCallsParams,
) -> Result<Option<Vec<CallHierarchyOutgoingCall>>>pub(crate) fn handle_call_hierarchy_outgoing(
snap: GlobalStateSnapshot,
params: CallHierarchyOutgoingCallsParams,
) -> Result<Option<Vec<CallHierarchyOutgoingCall>>>