This averts a rare but annoying log-after-test race condition.

* Rebased and git-squashed the commits in PR #6546

migrate abci to finalizeBlock

work on abci, proxy and mempool

abciresponse, blok events, indexer, some tests

fix some tests

fix errors

fix errors in abci

fix tests amd errors

* Fixes after rebasing PR#6546

* Restored height to RequestFinalizeBlock & other

* Fixed more UTs

* Fixed kvstore

* More UT fixes

* last TC fixed

* make format

* Update internal/consensus/mempool_test.go

Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>

* Addressed @williambanfield's comments

* Fixed UTs

* Addressed last comments from @williambanfield

* make format

Co-authored-by: marbar3778 <marbar3778@yahoo.com>
Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com>

This change has two main effects:

1. Remove most of the Async methods from the abci.Client interface.
   Remaining are FlushAsync, CommitTxAsync, and DeliverTxAsync.

2. Rename the synchronous methods to remove the "Sync" suffix.

The rest of the change is updating the implementations, subsets, and mocks of
the interface, along with the call sites that point to them.

* Fix stringly-typed mock stubs.
* Rename helper method.

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.42.0 to 1.43.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/grpc/grpc-go/releases">google.golang.org/grpc's releases</a>.</em></p>
<blockquote>
<h2>Release 1.43.0</h2>
<h1>API Changes</h1>
<ul>
<li>grpc: stabilize <code>WithConnectParams</code> <code>DialOption</code> (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4915">#4915</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/hypnoglow"><code>@​hypnoglow</code></a></li>
</ul>
</li>
</ul>
<h1>Behavior Changes</h1>
<ul>
<li>status: support wrapped errors in <code>FromContextError</code> (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4977">#4977</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/bestbeforetoday"><code>@​bestbeforetoday</code></a></li>
</ul>
</li>
<li>config: remove the environment variable to disable retry support (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4922">#4922</a>)</li>
</ul>
<h1>New Features</h1>
<ul>
<li>balancer: new field <code>Authority</code> in <code>BuildOptions</code> for server name to use in the authentication handshake with a remote load balancer (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4969">#4969</a>)</li>
</ul>
<h1>Bug Fixes</h1>
<ul>
<li>xds/resolver: fix possible <code>ClientConn</code> leak upon resolver initialization failure (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4900">#4900</a>)</li>
<li>client: fix <code>nil</code> panic in rare race conditions with the pick first LB policy (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4971">#4971</a>)</li>
<li>xds: improve RPC error messages when xDS connection errors occur (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5032">#5032</a>, <a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5054">#5054</a>)</li>
<li>transport: do not create stream object in the face of illegal stream IDs (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4873">#4873</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/uds5501"><code>@​uds5501</code></a></li>
</ul>
</li>
</ul>
<h1>Documentation</h1>
<ul>
<li>client: clarify errors to indicate whether compressed or uncompressed messages exceeded size limits (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4918">#4918</a>)
<ul>
<li>Special Thanks: <a href="https://github.com/uds5501"><code>@​uds5501</code></a></li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="14c11384b7"><code>14c1138</code></a> Change version to 1.43.0 (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5039">#5039</a>)</li>
<li><a href="ae29ac3e1e"><code>ae29ac3</code></a> xds/client: send NewStream errors to the watchers (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5032">#5032</a>)</li>
<li><a href="296afc2e57"><code>296afc2</code></a> transport: better error message when per-RPC creds fail (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5033">#5033</a>)</li>
<li><a href="e15d978c82"><code>e15d978</code></a> xds/client: send connection errors to all watchers (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5054">#5054</a>)</li>
<li><a href="46e883a9ab"><code>46e883a</code></a> Backport &quot;xds/c2p: replace C2P resolver env var with experimental scheme suff...</li>
<li><a href="3786ae1778"><code>3786ae1</code></a> xds/resolver: Add support for cluster specifier plugins (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4987">#4987</a>)</li>
<li><a href="512e89474b"><code>512e894</code></a> rls: support extra_keys and constant_keys (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4995">#4995</a>)</li>
<li><a href="f3bbd12084"><code>f3bbd12</code></a> xds/bootstrap_config: add a string function to server config (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5031">#5031</a>)</li>
<li><a href="46935b9650"><code>46935b9</code></a> fix possible nil before casting (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5017">#5017</a>)</li>
<li><a href="c2bccd0b15"><code>c2bccd0</code></a> xds/kokoro: install go 1.17, and retry go build (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/5015">#5015</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/grpc/grpc-go/compare/v1.42.0...v1.43.0">compare view</a></li>
</ul>
</details>
<br />


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</details>

This is a very small change, but removes a method from the
`service.Service` interface (a win!) and forces callers to explicitly
pass loggers in to objects during construction rather than (later)
injecting them. There's not a real need for this kind of lazy
construction of loggers, and I think a decent potential for confusion
for mutable loggers.

The main concern I have is that this changes the constructor API for
ABCI clients. I think this is fine, and I suspect that as we plumb
contexts through, and make changes to the RPC services there'll be a
number of similar sorts of changes to various (quasi) public
interfaces, which I think we should welcome.

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.41.0 to 1.42.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/grpc/grpc-go/releases">google.golang.org/grpc's releases</a>.</em></p>
<blockquote>
<h2>Release 1.42.0</h2>
<h1>Behavior Changes</h1>
<ul>
<li>grpc: Dial(&quot;unix://relative-path&quot;) no longer works (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4817">#4817</a>)
<ul>
<li>use &quot;unix://absolute-path&quot; or &quot;unix:relative-path&quot; instead in accordance with <a href="https://github.com/grpc/grpc/blob/master/doc/naming.md#name-syntax">our documentation</a></li>
</ul>
</li>
<li>xds/csds: use new field <code>GenericXdsConfig</code> instead of <code>PerXdsConfig</code> (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4898">#4898</a>)</li>
</ul>
<h1>New Features</h1>
<ul>
<li>grpc: support <code>grpc.WithAuthority</code> when secure credentials are used (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4817">#4817</a>)</li>
<li>creds/google: add NewDefaultCredentialsWithOptions() to support custom per-RPC creds (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4830">#4830</a>)</li>
<li>authz: create file watcher interceptor for gRPC SDK API (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4760">#4760</a>)</li>
<li>attributes: add <code>Equal</code> method (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4855">#4855</a>)</li>
<li>resolver: add <code>AddressMap</code> and <code>State.BalancerAttributes</code> (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4855">#4855</a>)</li>
<li>resolver: Add <code>URL</code> field to <code>Target</code> to store parsed dial target (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4817">#4817</a>)</li>
<li>grpclb: add a <code>target_name</code> field to lb config to specify target when used as a child policy (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4847">#4847</a>)</li>
<li>grpclog: support formatting log output as JSON (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4854">#4854</a>)</li>
</ul>
<h1>Bug Fixes</h1>
<ul>
<li>server: add missing conn.Close if the connection dies before reading the HTTP/2 preface (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4837">#4837</a>)</li>
<li>grpclb: recover if addresses are received after an empty server list was received previously (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4879">#4879</a>)</li>
<li>authz: support empty principals and fix rbac authenticated matcher (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4883">#4883</a>)</li>
<li>xds/rds: NACK the RDS response if it contains unknown cluster specifier (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4788">#4788</a>)</li>
<li>xds/priority: do not switch to low priority when high priority is in Idle (e.g. ringhash) (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4889">#4889</a>)</li>
</ul>
<h1>Documentation</h1>
<ul>
<li>grpc: stabilize WithDefaultServiceConfig and improve godoc (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4888">#4888</a>)</li>
<li>status: clarify FromError docstring (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4880">#4880</a>)</li>
<li>examples: add example illustrating the use of unix abstract sockets (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4848">#4848</a>)</li>
<li>examples: update load balancing example to use loadBalancingConfig (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4887">#4887</a>)</li>
<li>doc: promote WithDisableRetry to stable; clarify retry is enabled by default (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4901">#4901</a>)</li>
</ul>
<h1>API Changes</h1>
<ul>
<li>credentials: Mark <code>TransportCredentials.OverrideServerName</code> method as deprecated (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4817">#4817</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="aff571cc86"><code>aff571c</code></a> Change version to 1.42.0 (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4910">#4910</a>)</li>
<li><a href="2d7bdf2d23"><code>2d7bdf2</code></a> xds: Set RBAC on by default (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4909">#4909</a>)</li>
<li><a href="d47437c91e"><code>d47437c</code></a> xds: Fix invert functionality for header matcher (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4902">#4902</a>)</li>
<li><a href="9fa2698264"><code>9fa2698</code></a> xds/csds: populate new GenericXdsConfig field (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4898">#4898</a>)</li>
<li><a href="6e8625df63"><code>6e8625d</code></a> doc: promote WithDisableRetry to stable; clarify retry is enabled by default ...</li>
<li><a href="f1d87c14c2"><code>f1d87c1</code></a> client: properly disable retry if GRPC_GO_RETRY=off (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4899">#4899</a>)</li>
<li><a href="03753f593c"><code>03753f5</code></a> creds/google: fix CFE cluster name check (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4893">#4893</a>)</li>
<li><a href="4f21cde702"><code>4f21cde</code></a> authz: support empty principals and fix rbac authenticated matcher (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4883">#4883</a>)</li>
<li><a href="f00baa6c3c"><code>f00baa6</code></a> resolver: replace AddressMap.Range with Keys (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4891">#4891</a>)</li>
<li><a href="2a312458e6"><code>2a31245</code></a> client: don't force passthrough as default resolver (<a href="https://github-redirect.dependabot.com/grpc/grpc-go/issues/4890">#4890</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/grpc/grpc-go/compare/v1.41.0...v1.42.0">compare view</a></li>
</ul>
</details>
<br />


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</details>

`abci.Client`:

- Sync and Async methods now accept a context for cancellation
    * grpc client uses context to cancel both Sync and Async requests
    * local client ignores context parameter
    * socket client uses context to cancel Sync requests and to drop Async requests before sending them if context was cancelled prior to that

- Async methods return an error
    * socket client returns an error immediately if queue is full for Async requests
    * local client always returns nil error
    * grpc client returns an error if context was cancelled before we got response or the receiving queue had a space for response (do not confuse with the sending queue from the socket client)

- specify clients semantics in [doc.go](https://raw.githubusercontent.com/tendermint/tendermint/27112fffa62276bc016d56741f686f0f77931748/abci/client/doc.go)

`mempool.TxInfo`

- add optional `Context` to `TxInfo`, which can be used to cancel `CheckTx` request

Closes #5190

## Description

add more error checks to tests


gonna do a third PR that tackles the non test cases

## Description

partially cleanup in preparation for errcheck

i ignored a bunch of defer errors in tests but with the update to go 1.14 we can use `t.Cleanup(func() { if err := <>; err != nil {..}}` to cover those errors, I will do this in pr number two of enabling errcheck.

ref #5059

Fixes these test failures:

```
=== RUN   TestKVStore
### Testing KVStore 
I[2020-05-25|13:32:31.303] Starting ABCIServer service                  module=abci-server impl=ABCIServer
    TestKVStore: example_test.go:48: 
                Error Trace:    example_test.go:48
                                                        example_test.go:28
                Error:          Received unexpected error:
                                listen unix test.sock: bind: address already in use
                Test:           TestKVStore
                Messages:       Error starting socket server
--- FAIL: TestKVStore (0.00s) 
```

* libs/common: Refactor libs/common 5

- move mathematical functions and types out of `libs/common` to math pkg
- move net functions out of `libs/common` to net pkg
- move string functions out of `libs/common` to strings pkg
- move async functions out of `libs/common` to async pkg
- move bit functions out of `libs/common` to bits pkg
- move cmap functions out of `libs/common` to cmap pkg
- move os functions out of `libs/common` to os pkg

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* fix testing issues

* fix tests

closes #41417

woooooooooooooooooo kill the cmn pkg

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* add changelog entry

* fix goimport issues

* run gofmt

* Fix many golint errors

* Fix golint errors in the 'lite' package

* Don't export Pool.store

* Fix typo

* Revert unwanted changes

* Fix errors in counter package

* Fix linter errors in kvstore package

* Fix linter error in example package

* Fix error in tests package

* Fix linter errors in v2 package

* Fix linter errors in consensus package

* Fix linter errors in evidence package

* Fix linter error in fail package

* Fix linter errors in query package

* Fix linter errors in core package

* Fix linter errors in node package

* Fix linter errors in mempool package

* Fix linter error in conn package

* Fix linter errors in pex package

* Rename PEXReactor export to Reactor

* Fix linter errors in trust package

* Fix linter errors in upnp package

* Fix linter errors in p2p package

* Fix linter errors in proxy package

* Fix linter errors in mock_test package

* Fix linter error in client_test package

* Fix linter errors in coretypes package

* Fix linter errors in coregrpc package

* Fix linter errors in rpcserver package

* Fix linter errors in rpctypes package

* Fix linter errors in rpctest package

* Fix linter error in json2wal script

* Fix linter error in wal2json script

* Fix linter errors in kv package

* Fix linter error in state package

* Fix linter error in grpc_client

* Fix linter errors in types package

* Fix linter error in version package

* Fix remaining errors

* Address review comments

* Fix broken tests

* Reconcile package coregrpc

* Fix golangci bot error

* Fix new golint errors

* Fix broken reference

* Enable golint linter

* minor changes to bring golint into line

* fix failing test

* fix pex reactor naming

* address PR comments

* Fix maligned structs

* Fix interfacer errors

* Revert accidental go.mod and go.sum changes

* Revert P2PConfig struct maligned reorder

* Revert PeerRoundState struct maligned reordering

* Revert RoundState struct maligned reordering

* Reorder WSClient struct

* Revert accidental type change

* Clean up type change

* Clean up type changes

* Revert to types.ABCIApplicationServer in GRPCServer struct

* Revert maligned changes to BaseConfig struct

* Fix tests in io_test.go

* Fix client_test package tests

* Fix reactor tests in consensus package

* Fix new interfacer errors

cleanup to add linter

    grpc change:
        https://godoc.org/google.golang.org/grpc#WithContextDialer
        https://godoc.org/google.golang.org/grpc#WithDialer
        grpc/grpc-go#2627
    prometheous change:
        due to UninstrumentedHandler, being deprecated in the future
    empty branch = empty if or else statement
        didn't delete them entirely but commented
        couldn't find a reason to have them
    could not replicate the issue #3406
        but if want to keep it commented then we should comment out the if statement as well

As per #2127, this refactors the RequestCheckTx ProtoBuf struct to allow for a flag indicating whether a query is a recheck or not (and allows for possible future, more nuanced states).

In order to pass this extended information through to the ABCI app, the proxy.AppConnMempool (and, for consistency, the proxy.AppConnConsensus) interface seems to need to be refactored along with abcicli.Client.

And, as per this comment, I've made the following modification to the protobuf definition for the RequestCheckTx structure:

enum CheckTxType {
  New = 0;
  Recheck = 1;
}

message RequestCheckTx {
  bytes tx = 1;
  CheckTxType type = 2;
}

* Refactor ABCI CheckTx to notify of recheck

As per #2127, this refactors the `RequestCheckTx` ProtoBuf struct to allow for:

1. a flag indicating whether a query is a recheck or not (and allows for
   possible future, more nuanced states)
2. an `additional_data` bytes array to provide information for those more
   nuanced states.

In order to pass this extended information through to the ABCI app, the
`proxy.AppConnMempool` (and, for consistency, the
`proxy.AppConnConsensus`) interface seems to need to be refactored.

Commits:

* Fix linting issue

* Add CHANGELOG_PENDING entry

* Remove extraneous explicit initialization

* Update ABCI spec doc to include new CheckTx params

* Rename method param for consistency

* Rename CheckTxType enum values and remove additional_data param

Signatures are now []byte, which saves on the number of bytes after
amino encoding

(squash this) address Ismail's comment

This PR changes ABCI time format from int64 (Unix seconds) to WKT (WellKnownType) google.protobuf.Timestamp.

Refs #1857

Reasons:

better precision
standard DT for proto

* update Gopkg.lock
* [makefile] remove extra grep
    - go list excludes vendor by default now
* proto3 timestamp
* [docs/abci-spec] note about serialisation format
* make time non-nullable

This reverts commit d02c5d1e30.