Fix SourceElement for classes loaded in decompiler

core/descriptors/src/org/jetbrains/kotlin/builtins/BuiltInsClassDataFinder.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.builtins
 
+import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.serialization.ClassData
 import org.jetbrains.kotlin.serialization.ClassDataWithSource
@@ -36,6 +37,6 @@ class BuiltInsClassDataFinder(
 
     override fun findClassData(classId: ClassId): ClassDataWithSource? {
         val classProto = classIdToProto[classId] ?: return null
-        return ClassDataWithSource(ClassData(nameResolver, classProto))
+        return ClassDataWithSource(ClassData(nameResolver, classProto), SourceElement.NO_SOURCE)
     }
 }

core/deserialization/src/org/jetbrains/kotlin/serialization/ProtoDatas.kt

@@ -26,7 +26,7 @@ data class ClassData(
 
 data class ClassDataWithSource(
         val classData: ClassData,
-        val sourceElement: SourceElement = SourceElement.NO_SOURCE
+        val sourceElement: SourceElement
 )
 
 data class PackageData(

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/ProtoContainer.kt

@@ -53,4 +53,6 @@ sealed class ProtoContainer(
     }
 
     abstract fun debugFqName(): FqName
+
+    override fun toString() = "${javaClass.simpleName}: ${debugFqName()}"
 }

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/classFile/DeserializerForClassfileDecompiler.kt

@@ -131,7 +131,7 @@ class DirectoryBasedDataFinder(
             return null
         }
 
-        return ClassDataWithSource(JvmProtoBufUtil.readClassDataFrom(data, strings))
+        return ClassDataWithSource(JvmProtoBufUtil.readClassDataFrom(data, strings), KotlinJvmBinarySourceElement(binaryClass))
     }
 }
 

js/js.serializer/src/org/jetbrains/kotlin/serialization/js/KotlinJavascriptClassDataFinder.kt

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.serialization.js
 
+import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.serialization.ClassData
 import org.jetbrains.kotlin.serialization.ClassDataWithSource
@@ -31,6 +32,6 @@ class KotlinJavascriptClassDataFinder(
     override fun findClassData(classId: ClassId): ClassDataWithSource? {
         val stream = loadResource(KotlinJavascriptSerializedResourcePaths.getClassMetadataPath(classId)) ?: return null
         val classProto = ProtoBuf.Class.parseFrom(stream, JsSerializerProtocol.extensionRegistry)
-        return ClassDataWithSource(ClassData(nameResolver, classProto))
+        return ClassDataWithSource(ClassData(nameResolver, classProto), SourceElement.NO_SOURCE)
     }
 }