Fix NPE on equals/hashCode for callable references without kotlin-reflect

#KT-11316 Fixed
 #KT-15847 Fixed

core/runtime.jvm/src/kotlin/jvm/internal/PackageReference.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlin.jvm.internal
+
+import kotlin.reflect.KCallable
+
+class PackageReference(
+        override val jClass: Class<*>,
+        @Suppress("unused") private val moduleName: String
+) : ClassBasedDeclarationContainer {
+    override val members: Collection<KCallable<*>>
+        get() = throw KotlinReflectionNotSupportedError()
+
+    override fun equals(other: Any?) =
+            other is PackageReference && jClass == other.jClass
+
+    override fun hashCode() =
+            jClass.hashCode()
+
+    override fun toString() =
+            jClass.toString() + Reflection.REFLECTION_NOT_AVAILABLE
+}

core/runtime.jvm/src/kotlin/jvm/internal/ReflectionFactory.java

@@ -30,7 +30,7 @@ public class ReflectionFactory {
     }
 
     public KDeclarationContainer getOrCreateKotlinPackage(Class javaClass, String moduleName) {
-        return null;
+        return new PackageReference(javaClass, moduleName);
     }
 
     public KClass getOrCreateKotlinClass(Class javaClass) {