refactor(code-gen/go): cleanup child creation

code-generation/language-go/src/main/resources/templates/go/complex-type-template.go.ftlh

@@ -1121,7 +1121,7 @@ func (m *_${type.name}) parse(ctx context.Context, readBuffer utils.ReadBuffer<#
 						</#if>: // ${case.name}
                     </@compress>
 
-		if _child, err = (&_${case.name}{}).parse(ctx, readBuffer, m<#if case.allParserArguments.isPresent()>, <#list case.allParserArguments.orElseThrow() as parserArgument><#if <#--TODO: here DF1ResponseMessage throws a payloadLength not present: meaning that some feature is not rightfully implemented as the result should be a error not a missing pointer-->type.getPropertyFieldFromThisOrParentByName(parserArgument.name).isPresent() && type.getPropertyFieldFromThisOrParentByName(parserArgument.name).orElseThrow().isOptionalField()>*</#if>${parserArgument.name}<#sep>, </#sep></#list></#if>); err != nil {
+		if _child, err = new(_${case.name}).parse(ctx, readBuffer, m<#if case.allParserArguments.isPresent()>, <#list case.allParserArguments.orElseThrow() as parserArgument><#if <#--TODO: here DF1ResponseMessage throws a payloadLength not present: meaning that some feature is not rightfully implemented as the result should be a error not a missing pointer-->type.getPropertyFieldFromThisOrParentByName(parserArgument.name).isPresent() && type.getPropertyFieldFromThisOrParentByName(parserArgument.name).orElseThrow().isOptionalField()>*</#if>${parserArgument.name}<#sep>, </#sep></#list></#if>); err != nil {
 			return nil, errors.Wrap(err, "Error parsing sub-type ${case.name} for type-switch of ${type.name}")<@emitImport import="github.com/pkg/errors" />
 		}
 				</#list>