internal/ethapi,webext: add debug_getRawReceipt RPC

[ryanschneider]

This is a small tweak to #24726, which I closed since it didn't actually return the correct data for EIP-2718 non-legacy transactions. Turns out the fix was quite simple, just call receipt.MarshalBinary() instead of rlp.EncodeToBytes(receipt), and now the EIP-2718 receipts are handled correctly.

Otherwise, follows the same pattern as debug_getBlockRlp above it, using the same preamble code as eth_getTransactionReceipt (https://github.com/ethereum/go-ethereum/blob/master/internal/ethapi/api.go#L1547).

I fully admit the RPC name is now crossing into unwieldy territory, happy to change it to something more concise if any suggestions arise.. RPC name was changed to debug_getRawReceipt to match Felix's suggestion in #24738 (comment)

Tested on this Sepolia transaction:

> debug.getRawReceipt("0x30296f5f32972c7c3b39963cfd91073000cb882c294adc2dcf0ac9ca34d67bd2")
"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"

https://sepolia.otterscan.io/tx/0x30296f5f32972c7c3b39963cfd91073000cb882c294adc2dcf0ac9ca34d67bd2

I used the ethereumjs trie implementation at https://github.com/ethereumjs/ethereumjs-monorepo/blob/master/packages/trie/src/baseTrie.ts#L43 to confirm that this data correctly recreates the containing blocks receipt root (the block in question only had this one tx in it) using this code snippet: https://replit.com/@ryanleeschneider/TrieTest#index.ts

[holiman]

LGTM, but it would be nice to move this off the debug namespace and place it alongside the func (s *PublicTransactionPoolAPI) GetTransactionReceipt further up in this file. I guess that's for later, though...(?)

[s1na]

@holiman do you think there are use-cases where debug_getRawReceipts can't be used? do we really need both?

[lightclient]

My 2 wei is that we should stick with debug_getRawReceipts until there is a strong motivation for adding this level of granularity.

[ryanschneider]

Closing since rough consensus seems to be that #24773 covers use cases enough for now, happy to reopen and rebase if we change our minds later.