Fix incremental packages

compiler/frontend.java/src/org/jetbrains/kotlin/load/kotlin/incremental/FileSourceElement.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2015 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 org.jetbrains.kotlin.load.kotlin.incremental
+
+import org.jetbrains.kotlin.descriptors.SourceElement
+import java.io.File
+
+public class FileSourceElement(private val file: File) : SourceElement {
+    public val path: String
+        get() = file.canonicalPath
+}

compiler/frontend.java/src/org/jetbrains/kotlin/load/kotlin/incremental/IncrementalPackageFragmentProvider.kt

@@ -21,8 +21,10 @@ import org.apache.log4j.Logger
 import org.jetbrains.kotlin.descriptors.ModuleDescriptor
 import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
 import org.jetbrains.kotlin.descriptors.PackageFragmentProvider
+import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.descriptors.impl.PackageFragmentDescriptorImpl
 import org.jetbrains.kotlin.load.kotlin.ModuleMapping
+import org.jetbrains.kotlin.load.kotlin.PackageClassUtils
 import org.jetbrains.kotlin.load.kotlin.PackagePartClassUtils
 import org.jetbrains.kotlin.load.kotlin.incremental.components.IncrementalCache
 import org.jetbrains.kotlin.modules.Module
@@ -42,6 +44,7 @@ import org.jetbrains.kotlin.serialization.jvm.JvmProtoBufUtil
 import org.jetbrains.kotlin.storage.NotNullLazyValue
 import org.jetbrains.kotlin.storage.StorageManager
 import org.jetbrains.kotlin.utils.addToStdlib.singletonOrEmptyList
+import java.io.File
 import java.util.*
 
 public class IncrementalPackageFragmentProvider(
@@ -97,6 +100,13 @@ public class IncrementalPackageFragmentProvider(
         public val target: Module
             get() = this@IncrementalPackageFragmentProvider.target
 
+        private val sourceElement: SourceElement by lazy {
+            val incrementalCache = this@IncrementalPackageFragmentProvider.incrementalCache
+            val packageClassName = PackageClassUtils.getPackageClassName(fqName)
+            val classFilePath = incrementalCache.getClassFilePath(packageClassName)
+            FileSourceElement(File(classFilePath))
+        }
+
         val memberScope: NotNullLazyValue<JetScope> = storageManager.createLazyValue {
             if (fqName !in fqNamesToLoad) {
                 JetScope.Empty
@@ -136,6 +146,8 @@ public class IncrementalPackageFragmentProvider(
             }
         }
 
+        override fun getSource(): SourceElement = sourceElement
+
         override fun getMemberScope(): JetScope = memberScope()
 
         private inner class IncrementalPackageScope(val packageData: PackageData) : DeserializedPackageMemberScope(

compiler/frontend.java/src/org/jetbrains/kotlin/load/kotlin/incremental/components/IncrementalCache.kt

@@ -25,5 +25,7 @@ public interface IncrementalCache {
 
     public fun getModuleMappingData(): ByteArray?
 
+    public fun getClassFilePath(internalClassName: String): String
+
     public fun close()
 }