protected
    fun File.withFile(path: String, text: String = ""): File =
        resolve(path).apply {
            parentFile.mkdirs()
            writeText(text.trimIndent())
        }

    protected
    fun File.withKotlinFile(path: String, @Language("kotlin") text: String): File = withFile(path, text)

    protected

            )
        }

        // new file-facade class can be annotated with @Incubating, members must be annotated with @since
        checkBinaryCompatible(
            v2 = {
                withFile(
                    "kotlin/com/example/Source.kt",
                    """
                    @file:Incubating
                    package com.example

                    import org.gradle.api.Incubating