An API returning a Promise should not throw an exceptions [overload version]

Source/bindings/templates/methods.cpp

 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     {# Local variables #}
     {% if method.has_exception_state %}
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "{{method.name}}", "{{interface_name}}", info.Holder(), info.GetIsolate());
     {% endif %}
     {# Overloaded methods have length checked during overload resolution #}
@@ skipping 308 matching lines @@
 {% macro type_error_message(method, error_message) %}
 {% if method.is_constructor %}
 ExceptionMessages::failedToConstruct("{{interface_name}}", {{error_message}})
 {%- else %}
 ExceptionMessages::failedToExecute("{{method.name}}", "{{interface_name}}", {{error_message}})
 {%- endif %}
 {%- endmacro %}
 
 
 {######################################}
-{% macro throw_from_exception_state(method) %}
-{% if method.idl_type == 'Promise' %}
+{% macro throw_from_exception_state(method_or_overloads) %}
+{% if method_or_overloads.idl_type == 'Promise' or method_or_overloads.returns_promise_all %}
 v8SetReturnValue(info, exceptionState.reject(ScriptState::current(info.GetIsolate())).v8Value())
 {%- else %}
 exceptionState.throwIfNeeded()
 {%- endif %}
 {%- endmacro %}
 
 
 {######################################}
 {% macro throw_minimum_arity_type_error(method, number_of_required_arguments) %}
 {% if method.has_exception_state %}
@@ skipping 62 matching lines @@
     default:
         {# If methods are overloaded between interface and partial interface #}
         {# definitions, need to invoke methods defined in the partial #}
         {# interface. #}
         {# FIXME: we do not need to always generate this code. #}
         {# Invalid arity, throw error #}
         {# Report full list of valid arities if gaps and above minimum #}
         {% if overloads.valid_arities %}
         if (info.Length() >= {{overloads.minarg}}) {
             setArityTypeError(exceptionState, "{{overloads.valid_arities}}", info.Length());
-            exceptionState.throwIfNeeded();
+            {{throw_from_exception_state(overloads)}};
             return;
         }
         {% endif %}
         {# Otherwise just report "not enough arguments" #}
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments({{overloads.minarg}}, info.Length()));
-        exceptionState.throwIfNeeded();
+        {{throw_from_exception_state(overloads)}};
         return;
     {% endif %}
     }
     {% if not is_partial and overloads.has_partial_overloads %}
     ASSERT({{overloads.name}}MethodForPartialInterface);
     ({{overloads.name}}MethodForPartialInterface)(info);
     {% else %}
     {# No match, throw error #}
     exceptionState.throwTypeError("No function was found that matched the signature provided.");
-    exceptionState.throwIfNeeded();
+    {{throw_from_exception_state(overloads)}};
     {% endif %}
 }
 {% endmacro %}
 
 
 {##############################################################################}
 {% macro method_callback(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 static void {{method.name}}MethodCallback{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
@@ skipping 216 matching lines @@
     {% for method in conditionally_enabled_methods %}
     {% filter per_context_enabled(method.per_context_enabled_function) %}
     {% filter exposed(method.exposed_test) %}
     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 %}
     {% endfilter %}
     {% endfor %}
     {% endif %}
 }
 {%- endmacro %}