Change in behavior in Groovy 3.0.12

Hi all,

I'm trying to understand a change in behavior I see moving from Groovy
3.0.11 -> 3.0.12. Reproducer is here:
https://github.com/clayburn/Gradle7.6Issue

By default, this will build correctly against Groovy 3.0.11 if just running
`./gradlew assemble`. But if Groovy 3.0.12 is specified
(`./gradlew assemble -Dgroovy.version=3.0.12`), compilation fails to find
`com.android.ide.common.resources.AssetSet`.

If you look in Foo.groovy, you'll see a reference to
`MergeSourceSetFolders`, which is the class that imports `AssetSet`.
`AssetSet` comes from a runtime dependency on
`com.android.tools:sdk-common:30.0.4`. A couple of ways to work around this
change in behavior are to add this dependency to the compilation classpath
or to remove the `@CompileStatic` annotation. Is this expected with Groovy
3.0.12 and beyond, or is this a regression in behavior?

Thanks,

Clay Johnson
Senior Software Engineer
Gradle
W. gradle.com