IDL: Drop value conversion (V8 -> C++) macros from generated code

Source/bindings/tests/results/core/UnionTypesCore.h

Index: Source/bindings/tests/results/core/UnionTypesCore.h
diff --git a/Source/bindings/tests/results/core/UnionTypesCore.h b/Source/bindings/tests/results/core/UnionTypesCore.h
index 0991abeec6f43c20bd85d5791f0a849c3a25bc38..ba1b5cfb0c979e4c654179a0f414eb753bff9c34 100644
--- a/Source/bindings/tests/results/core/UnionTypesCore.h
+++ b/Source/bindings/tests/results/core/UnionTypesCore.h
@@ -65,7 +65,7 @@ private:
 
 class V8ArrayBufferOrArrayBufferViewOrDictionary final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, ArrayBufferOrArrayBufferViewOrDictionary&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, ArrayBufferOrArrayBufferViewOrDictionary&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const ArrayBufferOrArrayBufferViewOrDictionary&, v8::Local<v8::Object>, v8::Isolate*);
@@ -120,7 +120,7 @@ private:
 
 class V8BooleanOrStringOrUnrestrictedDouble final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, BooleanOrStringOrUnrestrictedDouble&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, BooleanOrStringOrUnrestrictedDouble&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const BooleanOrStringOrUnrestrictedDouble&, v8::Local<v8::Object>, v8::Isolate*);
@@ -168,7 +168,7 @@ private:
 
 class V8DoubleOrString final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, DoubleOrString&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, DoubleOrString&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const DoubleOrString&, v8::Local<v8::Object>, v8::Isolate*);
@@ -218,7 +218,7 @@ private:
 
 class V8NodeOrNodeList final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, NodeOrNodeList&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, NodeOrNodeList&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const NodeOrNodeList&, v8::Local<v8::Object>, v8::Isolate*);
@@ -273,7 +273,7 @@ private:
 
 class V8StringOrArrayBufferOrArrayBufferView final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrArrayBufferOrArrayBufferView&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrArrayBufferOrArrayBufferView&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const StringOrArrayBufferOrArrayBufferView&, v8::Local<v8::Object>, v8::Isolate*);
@@ -321,7 +321,7 @@ private:
 
 class V8StringOrDouble final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrDouble&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrDouble&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const StringOrDouble&, v8::Local<v8::Object>, v8::Isolate*);
@@ -369,7 +369,7 @@ private:
 
 class V8StringOrStringSequence final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrStringSequence&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, StringOrStringSequence&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const StringOrStringSequence&, v8::Local<v8::Object>, v8::Isolate*);
@@ -417,7 +417,7 @@ private:
 
 class V8TestEnumOrDouble final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestEnumOrDouble&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestEnumOrDouble&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestEnumOrDouble&, v8::Local<v8::Object>, v8::Isolate*);
@@ -465,7 +465,7 @@ private:
 
 class V8TestInterface2OrUint8Array final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterface2OrUint8Array&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterface2OrUint8Array&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestInterface2OrUint8Array&, v8::Local<v8::Object>, v8::Isolate*);
@@ -515,7 +515,7 @@ private:
 
 class V8TestInterfaceGarbageCollectedOrString final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceGarbageCollectedOrString&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceGarbageCollectedOrString&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestInterfaceGarbageCollectedOrString&, v8::Local<v8::Object>, v8::Isolate*);
@@ -563,7 +563,7 @@ private:
 
 class V8TestInterfaceOrLong final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceOrLong&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceOrLong&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestInterfaceOrLong&, v8::Local<v8::Object>, v8::Isolate*);
@@ -611,7 +611,7 @@ private:
 
 class V8TestInterfaceOrTestInterfaceEmpty final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceOrTestInterfaceEmpty&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceOrTestInterfaceEmpty&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestInterfaceOrTestInterfaceEmpty&, v8::Local<v8::Object>, v8::Isolate*);
@@ -661,7 +661,7 @@ private:
 
 class V8TestInterfaceWillBeGarbageCollectedOrTestDictionary final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceWillBeGarbageCollectedOrTestDictionary&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, TestInterfaceWillBeGarbageCollectedOrTestDictionary&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const TestInterfaceWillBeGarbageCollectedOrTestDictionary&, v8::Local<v8::Object>, v8::Isolate*);
@@ -709,7 +709,7 @@ private:
 
 class V8UnrestrictedDoubleOrString final {
 public:
-    static void toImpl(v8::Isolate*, v8::Local<v8::Value>, UnrestrictedDoubleOrString&, ExceptionState&);
+    static bool toImpl(v8::Isolate*, v8::Local<v8::Value>, UnrestrictedDoubleOrString&, ExceptionState&);
 };
 
 v8::Local<v8::Value> toV8(const UnrestrictedDoubleOrString&, v8::Local<v8::Object>, v8::Isolate*);
@@ -727,11 +727,11 @@ struct NativeValueTraits<UnrestrictedDoubleOrString> {
 
 class V8DoubleOrStringOrNull final {
 public:
-    static void toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, DoubleOrString& impl, ExceptionState& exceptionState)
+    static bool toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, DoubleOrString& impl, ExceptionState& exceptionState)
     {
         if (isUndefinedOrNull(v8Value))
-            return;
-        V8DoubleOrString::toImpl(isolate, v8Value, impl, exceptionState);
+            return true;
+        return V8DoubleOrString::toImpl(isolate, v8Value, impl, exceptionState);
     }
 };