bindings: Add validation for enum Sequence or Array

Source/bindings/tests/results/core/V8TestDictionary.cpp

Index: Source/bindings/tests/results/core/V8TestDictionary.cpp
diff --git a/Source/bindings/tests/results/core/V8TestDictionary.cpp b/Source/bindings/tests/results/core/V8TestDictionary.cpp
index 62cd43d3da1ece5601f0e2149585d5b383255f6e..088862607e5983fb5e0dc67978c1d2f1a581e6ff 100644
--- a/Source/bindings/tests/results/core/V8TestDictionary.cpp
+++ b/Source/bindings/tests/results/core/V8TestDictionary.cpp
@@ -130,9 +130,14 @@ void V8TestDictionary::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value
         V8StringResource<> enumMember = enumMemberValue;
         if (!enumMember.prepare(exceptionState))
             return;
-        String string = enumMember;
-        if (!(string == "" || string == "EnumValue1" || string == "EnumValue2" || string == "EnumValue3")) {
-            exceptionState.throwTypeError("member enumMember ('" + string + "') is not a valid enum value.");
+        const char* validValues[] = {
+            "",
+            "EnumValue1",
+            "EnumValue2",
+            "EnumValue3",
+        };
+        if (!isValidEnum(enumMember, validValues, 4)) {
+            exceptionState.throwTypeError("member enumMember is not a valid enum value.");
             return;
         }
         impl.setEnumMember(enumMember);