internal/ethapi: add basefee to block overrides (#25219)

internal/ethapi/api.go

@@ -889,6 +889,7 @@ type BlockOverrides struct {
 	GasLimit   *hexutil.Uint64
 	Coinbase   *common.Address
 	Random     *common.Hash
+	BaseFee    *hexutil.Big
 }
 
 // Apply overrides the given header fields into the given block context.
@@ -914,6 +915,9 @@ func (diff *BlockOverrides) Apply(blockCtx *vm.BlockContext) {
 	if diff.Random != nil {
 		blockCtx.Random = diff.Random
 	}
+	if diff.BaseFee != nil {
+		blockCtx.BaseFee = diff.BaseFee.ToInt()
+	}
 }
 
 func DoCall(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, timeout time.Duration, globalGasCap uint64) (*core.ExecutionResult, error) {