[minor] copy utility fun to reduce dependencies

libraries/scripting/jvm-host/test/kotlin/script/experimental/jvmhost/test/ScriptingHostTest.kt

@@ -6,7 +6,6 @@
 package kotlin.script.experimental.jvmhost.test
 
 import kotlinx.coroutines.runBlocking
-import org.jetbrains.kotlin.daemon.common.toHexString
 import org.junit.Assert
 import org.junit.Test
 import java.io.*
@@ -178,6 +177,8 @@ private fun File.readCompiledScript(scriptCompilationConfiguration: ScriptCompil
     }
 }
 
+private fun ByteArray.toHexString(): String = joinToString("", transform = { "%02x".format(it) })
+
 
 private class FileBasedScriptCache(val baseDir: File) : CompiledJvmScriptsCache {