merkledag: make Link.Node (the node cache) a private field

License: MIT
Signed-off-by: Mildred Ki'Lya <mildred-pub.git@mildred.fr>

set.go

@@ -11,10 +11,10 @@ import (
 	"sort"
 	"unsafe"
 
-	"gx/ipfs/QmZ4Qi3GaRbjcx28Sme5eMH7RQjGkt8wHxt2a65oLaeFEV/gogo-protobuf/proto"
 	"github.com/ipfs/go-ipfs/blocks/key"
 	"github.com/ipfs/go-ipfs/merkledag"
 	"github.com/ipfs/go-ipfs/pin/internal/pb"
+	"gx/ipfs/QmZ4Qi3GaRbjcx28Sme5eMH7RQjGkt8wHxt2a65oLaeFEV/gogo-protobuf/proto"
 	"gx/ipfs/QmZy2y8t9zQH2a1b8q2ZSLKp17ATuJoCNxxyMFG5qFExpt/go-net/context"
 )
 
@@ -172,7 +172,6 @@ func storeItems(ctx context.Context, dag merkledag.DAGService, estimatedLen uint
 			Name: "",
 			Hash: childKey.ToMultihash(),
 			Size: size,
-			Node: child,
 		}
 		n.Links[int(h%defaultFanout)] = l
 	}