Reuse evm tracing utils for trace_call_many

[mattsse]

Describe the feature

This currently creates a new evm instance per call

reth/crates/rpc/rpc/src/trace.rs

Lines 160 to 186 in ca116aa

	while let Some((call, trace_types)) = calls.next() {
	let (evm_env, tx_env) = this.eth_api().prepare_call_env(
	evm_env.clone(),
	call,
	&mut db,
	Default::default(),
	)?;
	let config = TracingInspectorConfig::from_parity_config(&trace_types);
	let mut inspector = TracingInspector::new(config);
	let (res, _) =
	this.eth_api().inspect(&mut db, evm_env, tx_env, &mut inspector)?;
	let trace_res = inspector
	.into_parity_builder()
	.into_trace_results_with_state(&res, &trace_types, &db)
	.map_err(Eth::Error::from_eth_err)?;
	results.push(trace_res);
	// need to apply the state changes of this call before executing the
	// next call
	if calls.peek().is_some() {
	// need to apply the state changes of this call before executing
	// the next call
	db.commit(res.state)
	}
	}

but we can likely reuse the helpers:

reth/crates/rpc/rpc-eth-api/src/helpers/trace.rs

Lines 338 to 354 in 4874396

	let results = this
	.evm_config()
	.evm_factory()
	.create_tracer(StateCacheDbRefMutWrapper(&mut db), evm_env, inspector_setup())
	.try_trace_many(block.transactions_recovered().take(max_transactions), |ctx| {
	let tx_info = TransactionInfo {
	hash: Some(*ctx.tx.tx_hash()),
	index: Some(idx),
	block_hash: Some(block_hash),
	block_number: Some(block_number),
	base_fee: Some(base_fee),
	};
	idx += 1;
	f(tx_info, ctx)
	})
	.collect::<Result<_, _>>()?;

maybe we'd need another trait fn for this that just traces calls

Additional context

assigned to @ongyimeng

[nadtech-hub]

I could do it either