Support class reference expressions without kotlin-reflect.jar in classpath

Currently not much you can do with them, but in the future '.java' extension
property will allow to get the Class instance from it.

Also introduce codegen tests with stdlib but without reflection in the
classpath.

Based on the work by @dnpetrov

core/reflection.jvm/src/kotlin/reflect/jvm/internal/KCallableContainerImpl.kt

@@ -31,18 +31,16 @@ import org.jetbrains.kotlin.serialization.jvm.JvmProtoBuf.JvmType.PrimitiveType.
 import java.lang.reflect.Constructor
 import java.lang.reflect.Field
 import java.lang.reflect.Method
+import kotlin.jvm.internal.DeclarationContainerImpl
 import kotlin.reflect.KCallable
-import kotlin.reflect.KDeclarationContainer
 import kotlin.reflect.KotlinReflectionInternalError
 
-abstract class KCallableContainerImpl : KDeclarationContainer {
+abstract class KCallableContainerImpl : DeclarationContainerImpl {
     // Note: this is stored here on a soft reference to prevent GC from destroying the weak reference to it in the moduleByClassLoader cache
     val moduleData by ReflectProperties.lazySoft {
         jClass.getOrCreateModule()
     }
 
-    abstract val jClass: Class<*>
-
     abstract val scope: JetScope
 
     abstract val constructorDescriptors: Collection<ConstructorDescriptor>