[bindings] partial interfaces should not violate componentization

Source/bindings/templates/attributes.cpp

Index: Source/bindings/templates/attributes.cpp
diff --git a/Source/bindings/templates/attributes.cpp b/Source/bindings/templates/attributes.cpp
index be681384231dbafaed4966122263aa2f4da1ac30..6a3774b81c89c95d90d03eaf11cfbaf02a1d4400 100644
--- a/Source/bindings/templates/attributes.cpp
+++ b/Source/bindings/templates/attributes.cpp
@@ -165,7 +165,7 @@ v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info
     {% if attribute.has_custom_getter %}
     {{v8_class}}::{{attribute.name}}AttributeGetterCustom(info);
     {% else %}
-    {{cpp_class}}V8Internal::{{attribute.name}}AttributeGetter{{world_suffix}}(info);
+    {{cpp_class_or_partial}}V8Internal::{{attribute.name}}AttributeGetter{{world_suffix}}(info);
     {% endif %}
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
@@ -185,7 +185,7 @@ static void {{attribute.name}}ConstructorGetterCallback{{world_suffix}}(v8::Loca
     {% if attribute.measure_as %}
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), callingExecutionContext(info.GetIsolate()), UseCounter::{{attribute.measure_as}});
     {% endif %}
-    {{cpp_class}}V8Internal::{{cpp_class}}ConstructorGetter{{world_suffix}}(property, info);
+    {{cpp_class_or_partial}}V8Internal::{{cpp_class}}ConstructorGetter{{world_suffix}}(property, info);
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
 {% endfilter %}
@@ -322,7 +322,7 @@ v8::Local<v8::String>, v8::Local<v8::Value> v8Value, const v8::PropertyCallbackI
     {% if attribute.has_custom_setter %}
     {{v8_class}}::{{attribute.name}}AttributeSetterCustom(v8Value, info);
     {% else %}
-    {{cpp_class}}V8Internal::{{attribute.name}}AttributeSetter{{world_suffix}}(v8Value, info);
+    {{cpp_class_or_partial}}V8Internal::{{attribute.name}}AttributeSetter{{world_suffix}}(v8Value, info);
     {% endif %}
     TRACE_EVENT_SET_SAMPLING_STATE("v8", "V8Execution");
 }
@@ -389,20 +389,20 @@ bool {{v8_class}}::PrivateScript::{{attribute.name}}AttributeSetter(LocalFrame*
 {% macro attribute_configuration(attribute) %}
 {% set getter_callback =
        '%sV8Internal::%sAttributeGetterCallback' %
-            (cpp_class, attribute.name)
+            (cpp_class_or_partial, attribute.name)
        if not attribute.constructor_type else
        ('%sV8Internal::%sConstructorGetterCallback' %
-            (cpp_class, attribute.name)
+            (cpp_class_or_partial, attribute.name)
         if attribute.needs_constructor_getter_callback else
-       '{0}V8Internal::{0}ConstructorGetter'.format(cpp_class)) %}
+       '%sV8Internal::%sConstructorGetter' % (cpp_class_or_partial, cpp_class)) %}
 {% set getter_callback_for_main_world =
        '%sV8Internal::%sAttributeGetterCallbackForMainWorld' %
-            (cpp_class, attribute.name)
+            (cpp_class_or_partial, attribute.name)
        if attribute.is_per_world_bindings else '0' %}
 {% set setter_callback = attribute.setter_callback %}
 {% set setter_callback_for_main_world =
        '%sV8Internal::%sAttributeSetterCallbackForMainWorld' %
-           (cpp_class, attribute.name)
+           (cpp_class_or_partial, attribute.name)
        if attribute.is_per_world_bindings and
           (not attribute.is_read_only or attribute.put_forwards) else '0' %}
 {% set wrapper_type_info =