Healing: Decide healing inlining based on metadata (minio#13178)

Don't perform an independent evaluation of inlining, but mirror the decision made when uploading the object.

Leads to some objects being inlined or not based on new metrics. Instead respect previous decision.

cmd/erasure-healing.go

@@ -428,7 +428,7 @@ func (er erasureObjects) healObject(ctx context.Context, bucket string, object s
 	}
 
 	var inlineBuffers []*bytes.Buffer
-	if len(latestMeta.Parts) <= 1 && latestMeta.Size < smallFileThreshold {
+	if latestMeta.InlineData() {
 		inlineBuffers = make([]*bytes.Buffer, len(outDatedDisks))
 	}
 
@@ -479,7 +479,7 @@ func (er erasureObjects) healObject(ctx context.Context, bucket string, object s
 				}
 				partPath := pathJoin(tmpID, dstDataDir, fmt.Sprintf("part.%d", partNumber))
 				if len(inlineBuffers) > 0 {
-					inlineBuffers[i] = bytes.NewBuffer(make([]byte, 0, erasure.ShardFileSize(latestMeta.Size)))
+					inlineBuffers[i] = bytes.NewBuffer(make([]byte, 0, erasure.ShardFileSize(latestMeta.Size)+32))
 					writers[i] = newStreamingBitrotWriterBuffer(inlineBuffers[i], DefaultBitrotAlgorithm, erasure.ShardSize())
 				} else {
 					writers[i] = newBitrotWriter(disk, minioMetaTmpBucket, partPath,