Old PrepareProposal on feature/abci++ppp (#9106)

* [Rebased to v0.34.x] abci: PrepareProposal (#6544)

* fixed cherry-pick

* proto changes

* make proto-gen

* UT fixes

* generate Client directive

* mockery

* App fixes

* Disable 'modified tx' hack

* mockery

* Make format

* Fix lint

Co-authored-by: Marko <marbar3778@yahoo.com>

test/e2e/app/app.go

@@ -257,6 +257,11 @@ func (app *Application) ApplySnapshotChunk(req abci.RequestApplySnapshotChunk) a
 	return abci.ResponseApplySnapshotChunk{Result: abci.ResponseApplySnapshotChunk_ACCEPT}
 }
 
+func (app *Application) PrepareProposal(
+	req abci.RequestPrepareProposal) abci.ResponsePrepareProposal {
+	return abci.ResponsePrepareProposal{BlockData: req.BlockData}
+}
+
 func (app *Application) Rollback() error {
 	return app.state.Rollback()
 }

test/fuzz/mempool/v0/fuzz_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+
 	mempoolv0 "github.com/tendermint/tendermint/test/fuzz/mempool/v0"
 )
 

test/fuzz/mempool/v1/fuzz_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+
 	mempoolv1 "github.com/tendermint/tendermint/test/fuzz/mempool/v1"
 )