Do not load implClassName JVM proto extension

Use JvmPackagePartSource instead for functions/properties in package parts,
check containing class kind for properties in interfaces

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

@@ -248,7 +248,8 @@ public class MemberDeserializer(private val c: DeserializationContext) {
         is DeserializedClassDescriptor -> ProtoContainer.Class(
                 classProto, c.nameResolver, c.typeTable,
                 isCompanionOfClass = DescriptorUtils.isCompanionObject(this) &&
-                                     containingDeclaration.let { DescriptorUtils.isClass(it) || DescriptorUtils.isEnumClass(it) }
+                                     containingDeclaration.let { DescriptorUtils.isClass(it) || DescriptorUtils.isEnumClass(it) },
+                isInterface = kind == ClassKind.INTERFACE
         )
         else -> null // TODO: support annotations on lambdas and their parameters
     }

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

@@ -16,6 +16,7 @@
 
 package org.jetbrains.kotlin.serialization.deserialization
 
+import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.serialization.ProtoBuf
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.PackagePartSource
@@ -28,9 +29,12 @@ sealed class ProtoContainer(
             val classProto: ProtoBuf.Class,
             nameResolver: NameResolver,
             typeTable: TypeTable,
-            val isCompanionOfClass: Boolean
+            val isCompanionOfClass: Boolean,
+            val isInterface: Boolean
     ) : ProtoContainer(nameResolver, typeTable) {
-        override fun debugFqName(): FqName = nameResolver.getClassId(classProto.fqName).asSingleFqName()
+        val classId: ClassId = nameResolver.getClassId(classProto.fqName)
+
+        override fun debugFqName(): FqName = classId.asSingleFqName()
     }
 
     class Package(

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/descriptors/DeserializedClassDescriptor.kt

@@ -296,7 +296,8 @@ public class DeserializedClassDescriptor(
             val annotations = enumEntryProtos[name]?.let { proto ->
                 DeserializedAnnotations(c.storageManager) {
                     c.components.annotationAndConstantLoader.loadEnumEntryAnnotations(
-                            ProtoContainer.Class(classProto, c.nameResolver, c.typeTable, isCompanionOfClass = false), proto
+                            ProtoContainer.Class(classProto, c.nameResolver, c.typeTable, isCompanionOfClass = false, isInterface = false),
+                            proto
                     )
                 }
             } ?: if (name in oldEnumEntryNames) Annotations.EMPTY