[bindings] Support CallWith=ThisValue for generic interface methods

Source/bindings/templates/methods.cpp

 {% from 'conversions.cpp' import v8_value_to_local_cpp_value %}
 
 
 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 {% if method.returns_promise and method.has_exception_state %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}Promise(const v8::FunctionCallbackInfo<v8::Value>& info, ExceptionState& exceptionState)
 {% else %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
@@ skipping 200 matching lines @@
     {{throw_type_error(method, '"parameter %s (\'%s\') is not an object."' %
                                (argument.index + 1, argument.name)) | indent}}
 }
 {% endif %}
 {% endmacro %}
 
 
 {######################################}
 {% macro cpp_method_call(method, v8_set_return_value, cpp_value) %}
 {# Local variables #}
-{% if method.is_call_with_script_state %}
+{% if method.is_call_with_script_state or method.is_call_with_this_value %}
 {# [ConstructorCallWith=ScriptState] #}
 {# [CallWith=ScriptState] #}
 ScriptState* scriptState = ScriptState::current(info.GetIsolate());
 {% endif %}
 {% if method.is_call_with_execution_context %}
 {# [ConstructorCallWith=ExecutionContext] #}
 {# [CallWith=ExecutionContext] #}
 ExecutionContext* executionContext = currentExecutionContext(info.GetIsolate());
 {% endif %}
 {% if method.is_call_with_script_arguments %}
@@ skipping 421 matching lines @@
                               if method.overloads else
                               method.runtime_enabled_function) %}
     prototypeObject->Set(v8AtomicString(isolate, "{{method.name}}"), v8::FunctionTemplate::New(isolate, {{cpp_class_or_partial}}V8Internal::{{method.name}}MethodCallback, v8Undefined(), defaultSignature, {{method.number_of_required_arguments}})->GetFunction());
     {% endfilter %}{# runtime_enabled() #}
     {% endfilter %}{# exposed() #}
     {% endfilter %}{# per_context_enabled() #}
     {% endfor %}
     {% endif %}
 }
 {%- endmacro %}