[bindings] partial interfaces should not violate componentization

Source/bindings/templates/partial_interface.cpp

+{% extends 'interface_base.cpp' %}
+
+{##############################################################################}
+{% block partial_interface %}
+void {{actual_v8_class}}::initialize()
+{
+    // Should be invoked from initModules.
+    {{v8_class}}::updateWrapperTypeInfo(
+        &{{actual_v8_class}}::install{{v8_class}}Template,
+        &{{actual_v8_class}}::installConditionallyEnabledMethods);
+    {% for method in methods %}
+    {% if method.overloads and method.overloads.has_partial_overloads %}
+    {{v8_class}}::register{{method.name | blink_capitalize}}MethodForPartialInterface(&{{actual_cpp_class}}V8Internal::{{method.name}}Method);
+    {% endif %}
+    {% endfor %}
+}
+
+{% endblock %}