eth/tracers: use slices.Contains (#29461)

eth/tracers/js/goja.go

@@ -21,6 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"slices"
 
 	"github.com/dop251/goja"
 	"github.com/ethereum/go-ethereum/core/tracing"
@@ -529,13 +530,7 @@ func (t *jsTracer) setBuiltinFunctions() {
 			vm.Interrupt(err)
 			return false
 		}
-		addr := common.BytesToAddress(a)
-		for _, p := range t.activePrecompiles {
-			if p == addr {
-				return true
-			}
-		}
-		return false
+		return slices.Contains(t.activePrecompiles, common.BytesToAddress(a))
 	})
 	vm.Set("slice", func(slice goja.Value, start, end int64) goja.Value {
 		b, err := t.fromBuf(vm, slice, false)

eth/tracers/native/call_flat.go

@@ -21,6 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"slices"
 	"strings"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -228,12 +229,7 @@ func (t *flatCallTracer) Stop(err error) {
 
 // isPrecompiled returns whether the addr is a precompile.
 func (t *flatCallTracer) isPrecompiled(addr common.Address) bool {
-	for _, p := range t.activePrecompiles {
-		if p == addr {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(t.activePrecompiles, addr)
 }
 
 func flatFromNested(input *callFrame, traceAddress []int, convertErrs bool, ctx *tracers.Context) (output []flatCallFrame, err error) {