Groovy DSL is missing an equivalent invoke on NamedDomainObjectContainer

[JLLeitschuh]

In Kotlin, there's this extension:

/**
 * Allows the container to be configured via an augmented DSL.
 *
 * @param configuration The expression to configure this container with
 * @return The container.
 */
inline operator fun <T : Any, C : NamedDomainObjectContainer<T>> C.invoke(
    configuration: NamedDomainObjectContainerScope<T>.() -> Unit
): C =

    apply {
        configuration(NamedDomainObjectContainerScope(this))
    }

So if I have an extension like this:

open class JlinkExtension
@Inject
internal constructor(
        project: Project
) {
    val linkOptions: NamedDomainObjectCollection<JLinkOptions> = project.container(JLinkOptions::class.java) { name ->
        JLinkOptions(name = name)
    }
}

In Kotlin, I can do this:

jlink {
    linkOptions {
        // Do whatever
    }
}

However, doing the same in Groovy results in this:

* What went wrong:
A problem occurred evaluating root project 'plugin-test'.
> Could not find method linkOptions() for arguments [build_5cmd5e1u8kv2rtq3aoi5hpenx$_run_closure1$_closure2@35652977] on object of type edu.wpi.first.desktop.jlink.JlinkExtension.

This is confusing for plugin authors, because they think when they are exposing a NamedDomainObjectContainer they are not exposing the ability to configure it the same way as groovy allows it to be configured.

Steps to Reproduce (for bugs)

In a plugin, just register the above provided JlinkExtension as an extension.

Your Environment

------------------------------------------------------------
Gradle 4.10.2
------------------------------------------------------------

Build time:   2018-09-19 18:10:15 UTC
Revision:     b4d8d5d170bb4ba516e88d7fe5647e2323d791dd

Kotlin DSL:   1.0-rc-6
Kotlin:       1.2.61
Groovy:       2.4.15
Ant:          Apache Ant(TM) version 1.9.11 compiled on March 23 2018
JVM:          1.8.0_92 (Oracle Corporation 25.92-b14)
OS:           Mac OS X 10.13.6 x86_64

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Given the limited bandwidth of the team, it will be automatically closed if no further activity occurs. If you're interested in how we try to keep the backlog in a healthy state, please read our blog post on how we refine our backlog. If you feel this is something you could contribute, please have a look at our Contributor Guide. Thank you for your contribution.

[stale]

This issue has been automatically closed due to inactivity. If you can reproduce this on a recent version of Gradle or if you have a good use case for this feature, please feel free to reopen the issue with steps to reproduce, a quick explanation of your use case or a high-quality pull request.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Given the limited bandwidth of the team, it will be automatically closed if no further activity occurs. If you're interested in how we try to keep the backlog in a healthy state, please read our blog post on how we refine our backlog. If you feel this is something you could contribute, please have a look at our Contributor Guide. Thank you for your contribution.