all: integrate the freezer with fast sync

* all: freezer style syncing

core, eth, les, light: clean up freezer relative APIs

core, eth, les, trie, ethdb, light: clean a bit

core, eth, les, light: add unit tests

core, light: rewrite setHead function

core, eth: fix downloader unit tests

core: add receipt chain insertion test

core: use constant instead of hardcoding table name

core: fix rollback

core: fix setHead

core/rawdb: remove canonical block first and then iterate side chain

core/rawdb, ethdb: add hasAncient interface

eth/downloader: calculate ancient limit via cht first

core, eth, ethdb: lots of fixes

* eth/downloader: print ancient disable log only for fast sync

1 files changed, 2 insertions, 2 deletions

diff --git a/ethdb/leveldb/leveldb.go b/ethdb/leveldb/leveldb.go
index 8eabee50e..f74e94d92 100644
--- a/ethdb/leveldb/leveldb.go
+++ b/ethdb/leveldb/leveldb.go
@@ -425,13 +425,13 @@ func (b *batch) Reset() {
 }
 
 // Replay replays the batch contents.
-func (b *batch) Replay(w ethdb.Writer) error {
+func (b *batch) Replay(w ethdb.KeyValueWriter) error {
 	return b.b.Replay(&replayer{writer: w})
 }
 
 // replayer is a small wrapper to implement the correct replay methods.
 type replayer struct {
-	writer  ethdb.Writer
+	writer  ethdb.KeyValueWriter
 	failure error
 }