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### Context
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### Contributor Checklist
- [ ] [Review Contribution Guidelines](https://github.com/gradle/gradle/blob/master/CONTRIBUTING.md).

* If we would have used `Closure`, we must instead use `Action<T>`, `Spec<T>`, `Callable<T>`, or `Transformer<OUT, IN>`.
* We need to ensure all APIs that are exposed in the Groovy DSL go through runtime decoration.
Runtime decoration mixes in methods that use Groovy Closures to maintain consistent behavior in Groovy DSL.

* If we would have used `Closure`, we must instead use `Action<T>`, `Spec<T>`, `Callable<T>`, or `Transformer<OUT, IN>`.
* We need to ensure all APIs that are exposed in the Groovy DSL go through runtime decoration.
Runtime decoration mixes in methods that use Groovy Closures to maintain consistent behavior in Groovy DSL.

        extensions.findByType<TestDistributionExtension>()?.apply {
            this as TestDistributionExtensionInternal
            // Dogfooding TD against ge-td-dogfooding in order to test new features and benefit from bug fixes before they are released
            server = uri("https://ge-td-dogfooding.grdev.net")

            if (project.testDistributionEnabled && !isUnitTest() && !isPerformanceProject()) {
                enabled = true

        // 'ab' will not match 'abc'
        /(?:[^*])$/,

        // WTF!
        // https://git-scm.com/docs/gitignore
        // changes in [2.22.1](https://git-scm.com/docs/gitignore/2.22.1)
        // which re-fixes #24, #38

        // > If there is a separator at the end of the pattern then the pattern
        // > will only match directories, otherwise the pattern can match both
        // > files and directories.