*         <li>{@link ElementsFromCollection} to represent a batch of elements added (or set wholesale) as an <code>Iterable</code>
 *         <li>{@link ElementsFromCollectionProvider} to represent a batch of elements added (or set wholesale) as a provider of <code>Iterable</code>
 *     </ul>

   *       detected. Rather than going to all the trouble of reimplementing this ourselves, we
   *       simply switch over to use the JDK implementation wholesale if probable hash flooding is
   *       detected, sacrificing the compactness guarantee in very rare cases in exchange for much
   *       more reliable worst-case behavior.

   *       detected. Rather than going to all the trouble of reimplementing this ourselves, we
   *       simply switch over to use the JDK implementation wholesale if probable hash flooding is
   *       detected, sacrificing the compactness guarantee in very rare cases in exchange for much
   *       more reliable worst-case behavior.

   *       detected. Rather than going to all the trouble of reimplementing this ourselves, we
   *       simply switch over to use the JDK implementation wholesale if probable hash flooding is
   *       detected, sacrificing the compactness guarantee in very rare cases in exchange for much
   *       more reliable worst-case behavior.

   *       detected. Rather than going to all the trouble of reimplementing this ourselves, we
   *       simply switch over to use the JDK implementation wholesale if probable hash flooding is
   *       detected, sacrificing the compactness guarantee in very rare cases in exchange for much
   *       more reliable worst-case behavior.

        stage1 = CachedScript.CompilationStage(Settings, ScriptPlugin, "stage1", Descriptions.script, file),
        stage2 = CachedScript.CompilationStage(Settings, ScriptPlugin, "stage2", Descriptions.script, file, hasBuildscriptBlock && hasBody)
    )


fun cachedBuildFile(file: File, hasBody: Boolean = false) =
    CachedScript.WholeFile(
        stage1 = CachedScript.CompilationStage(Project, TopLevel, "stage1", Descriptions.buildFile, file),

    }


private
data class MultiProjectCachedScripts(
    val settingsFile: CachedScript.WholeFile,
    val rootBuildFile: CachedScript.WholeFile,
    val leftBuildFile: CachedScript.WholeFile,
    val rightBuildFile: CachedScript.WholeFile

        cachedScripts.forEach { assertClassLoads(it, 0) }

    private
    fun assertClassLoads(cachedScript: CachedScript, count: Int) =
        when (cachedScript) {
            is CachedScript.WholeFile -> cachedScript.stages.forEach { assertClassLoads(it, count) }
            is CachedScript.CompilationStage -> assertClassLoads(cachedScript, count)
        }

    private

internal
interface KotlinDslCacheFixture {
    fun misses(vararg cachedScripts: CachedScript)
    fun hits(vararg cachedScripts: CachedScript)
}


sealed class CachedScript {

    class WholeFile(
        val stage1: CompilationStage,
        val stage2: CompilationStage
    ) : CachedScript() {

        val stages = listOf(stage1, stage2)
    }

    class CompilationStage(