fix: handle set of variadic arg list for a ... value

_test/variadic6.go

@@ -0,0 +1,20 @@
+package main
+
+import "fmt"
+
+type A struct {
+}
+
+func (a A) f(vals ...bool) {
+	for _, v := range vals {
+		fmt.Println(v)
+	}
+}
+func main() {
+	bools := []bool{true}
+	a := A{}
+	a.f(bools...)
+}
+
+// Output:
+// true

interp/run.go

@@ -821,7 +821,11 @@ func call(n *node) {
 						d.Set(src)
 					}
 				case variadic >= 0 && i >= variadic:
-					vararg.Set(reflect.Append(vararg, v(f)))
+					if v(f).Type() == vararg.Type() {
+						vararg.Set(v(f))
+					} else {
+						vararg.Set(reflect.Append(vararg, v(f)))
+					}
 				default:
 					dest[i].Set(v(f))
 				}