Properly report transaction index overflow when appropriate

[joshuacolvin0]

To reproduce:

curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0x33adf26b042f9c0287a5701422b6a4aa5b5840db65f43028548f63fbd37ef57a","0x2"],"id":1}' https://kovan4.arbitrum.io/rpc
{"jsonrpc":"2.0","id":1,"error":{"code":-32000,"message":"got *evm.BlockInfo but expected TxResult"}}

the error message should say "transaction index overflow"
here is the proof that transaction from block 1836 is also included in block 1837:
curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_getTransactionByBlockHashAndIndex","params":["0x33adf26b042f9c0287a5701422b6a4aa5b5840db65f43028548f63fbd37ef57a","0x0"],"id":1}' https://kovan4.arbitrum.io/rpc
{"jsonrpc":"2.0","id":1,"result":{"blockHash":"0x33adf26b042f9c0287a5701422b6a4aa5b5840db65f43028548f63fbd37ef57a","blockNumber":"0x72d","from":"0x96ebb7eba9ce2db94bc065db82c8f12d87724c7b","gas":"0x5208","gasPrice":"0x0","hash":"0x9e4f5cc60e02add451ba120deba634c48b625d15cc759e83432aa3427672c4c0","input":"0x","nonce":"0x3","to":"0x24ae64a45d86ef76a8a2eda3d296b0c2cbfc3086","transactionIndex":"0x0","value":"0x2e90edd000","v":"0x1836a950a8154","r":"0x33aba79190219ae2c9aaf11757ccd0ad87945cd3072316046c21ea6de79aabf1","s":"0x19d3410ddd12be3c831a4dbc6d26399f2161098768e13ca6aa8e686f23684237","l1SequenceNumber":"0x75e","parentRequestId":"0x43d1ba462914271dabe4a30a5e82244199a980a4a6585a9edb0b2bab577d5bac","indexInParent":"0x0","arbType":"0x3","arbSubType":"0x4","l1BlockNumber":"0x16e8039"}}