Function insert_direct_enum_check

fn insert_direct_enum_check<'tcx>(
    tcx: TyCtxt<'tcx>,
    local_decls: &mut IndexVec<Local, LocalDecl<'tcx>>,
    basic_blocks: &mut IndexVec<BasicBlock, BasicBlockData<'tcx>>,
    current_block: BasicBlock,
    source_op: Operand<'tcx>,
    discr: TyAndSize<'tcx>,
    op_size: Size,
    discriminants: Vec<u128>,
    source_info: SourceInfo,
    new_block: BasicBlock,
)