Fix tests in rpc module

eth/rpc/client.go

@@ -300,7 +300,7 @@ func (c *Client) CallContext(ctx context.Context, result interface{}, method str
 	case len(resp.Result) == 0:
 		return ErrNoResult
 	default:
-		return json.Unmarshal(resp.Result, &result)
+		return json.Unmarshal(resp.Result, result)
 	}
 }
 

eth/rpc/json.go

@@ -19,6 +19,7 @@ package rpc
 import (
 	"bytes"
 	"context"
+	std_json "encoding/json"
 	"errors"
 	"fmt"
 	"github.com/goccy/go-json"
@@ -239,7 +240,7 @@ func parseMessage(raw json.RawMessage) ([]*jsonrpcMessage, bool) {
 		json.Unmarshal(raw, &msgs[0])
 		return msgs, false
 	}
-	dec := json.NewDecoder(bytes.NewReader(raw))
+	dec := std_json.NewDecoder(bytes.NewReader(raw))
 	dec.Token() // skip '['
 	var msgs []*jsonrpcMessage
 	for dec.More() {

eth/rpc/testdata/invalid-syntax.json

@@ -1,5 +1,5 @@
 // This test checks that an error is written for invalid JSON requests.
 
 --> 'f
-<-- {"jsonrpc":"2.0","id":null,"error":{"code":-32700,"message":"invalid character '\\'' looking for beginning of value"}}
+<-- {"jsonrpc":"2.0","id":null,"error":{"code":-32700,"message":"json: invalid character \n as bool(false)"}}