Write JVM signatures to new protobuf messages

compiler/frontend.java/src/org/jetbrains/kotlin/fileClasses/JvmFileClassUtil.kt

@@ -60,14 +60,18 @@ public object JvmFileClassUtil {
 
     @JvmStatic
     public fun getPartFqNameForDeserializedCallable(callable: DeserializedCallableMemberDescriptor): FqName {
-        val implClassName = getImplClassName(callable)
+        val implClassName = getImplClassName(callable) ?: error("No implClassName for $callable")
         val packageFqName = (callable.containingDeclaration as PackageFragmentDescriptor).fqName
         return packageFqName.child(implClassName)
     }
 
     @JvmStatic
-    public fun getImplClassName(callable: DeserializedCallableMemberDescriptor): Name =
-            callable.nameResolver.getName(callable.proto.getExtension(JvmProtoBuf.implClassName))
+    public fun getImplClassName(callable: DeserializedCallableMemberDescriptor): Name? =
+            with(callable) {
+                if (proto.hasExtension(JvmProtoBuf.oldImplClassName))
+                    nameResolver.getName(proto.getExtension(JvmProtoBuf.oldImplClassName))
+                else null
+            }
 
     @JvmStatic
     public fun getHiddenPartFqName(file: JetFile, jvmFileClassAnnotations: ParsedJmvFileClassAnnotations): FqName =

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

@@ -168,7 +168,7 @@ public class IncrementalPackageFragmentProvider(
         ) {
             override fun filteredMemberProtos(allMemberProtos: Collection<ProtoBuf.Callable>): Collection<ProtoBuf.Callable> {
                 fun getPackagePart(callable: ProtoBuf.Callable) =
-                        callable.getExtension(JvmProtoBuf.implClassName)?.let { packageData.nameResolver.getName(it) }
+                        callable.getExtension(JvmProtoBuf.oldImplClassName)?.let { packageData.nameResolver.getName(it) }
 
                 fun shouldSkipPackagePart(name: Name) =
                         JvmClassName.byFqNameWithoutInnerClasses(fqName.child(name)).getInternalName() in obsoletePackageParts