* core: params: schedule Shanghai on goerli

* core/forkid: fix comment

* include withdrawals in ethclient responses

* omit empty withdrawals array in json serialization

* ethdb/pebble: fix range compaction

* ethdb/pebble: add comment

This fixes an issue where the withdrawal index was not calculated correctly
for multiple withdrawals in a single block.
Co-authored-by: Gary Rong <garyrong0905@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>

Adds support for a native call tracer with the Parity format, which outputs call frames
in a flat array. This tracer accepts the following options:

- `convertParityErrors: true` will convert error messages to match those of Parity
- `includePrecompiles: true` will report all calls to precompiles. The default
  matches Parity's behavior where CALL and STATICCALLs to precompiles are excluded

Incompatibilities with Parity include:

- Parity removes the result object in case of failure. This behavior is maintained
  with the exception of reverts. Revert output usually contains useful information,
  i.e. Solidity revert reason.
- The `gasUsed` field accounts for intrinsic gas (e.g. 21000 for simple transfers)
  and refunds unlike Parity
- Block rewards are not reported
Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>

This improves the speed of DHT crawling by using concurrent requests.
It also removes logging of individual DNS updates.

ci: disable coverage reporting in appveyor and travis

Add usage examples

* eth/filters: fix a breaking change and return rpctransaction

* eth/filters: fix test cases

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Co-authored-by: Catror <me@catror.com>

The EmptyRootHash and EmptyCodeHash are defined everywhere in the codebase, this PR replaces all of them with unified one defined in core/types package, and also defines constants for TxRoot, WithdrawalsRoot and UncleRoot

Clarifies the documentation around dumpconfi
Signed-off-by: Sungwoo Kim <git@sung-woo.kim>

This reverts commit 7c749c94.

The change fixes unmarshaling of JSON null results into json.RawMessage.

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Co-authored-by: Jason Yuan <jason.yuan@curvegrid.com>
Co-authored-by: Jason Yuan <jason.yuan869@gmail.com>

This PR contains a small portion of the full pbss PR, namely

    Remove the tracer from trie (and comitter), and instead using an accessList.
    Related changes to the Nodeset.


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Co-authored-by: Gary Rong <garyrong0905@gmail.com>

The method `GetPayloadBodiesByRangeV1` now returns "-38004: Too large request" error if the requested range is too large, according to spec
Co-authored-by: Martin Holst Swende <martin@swende.se>