rename JetClass.isTrait() to isInterface(); rename ClassKind.TRAIT to INTERACE

core/deserialization/src/org/jetbrains/kotlin/serialization/Flags.java

@@ -90,7 +90,7 @@ public class Flags {
         switch (kind) {
             case CLASS:
                 return ProtoBuf.Class.Kind.CLASS;
-            case TRAIT:
+            case INTERFACE:
                 return ProtoBuf.Class.Kind.TRAIT;
             case ENUM_CLASS:
                 return ProtoBuf.Class.Kind.ENUM_CLASS;

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

@@ -48,7 +48,7 @@ fun visibility(visibility: ProtoBuf.Visibility) = when (visibility) {
 
 public fun classKind(kind: ProtoBuf.Class.Kind): ClassKind = when (kind) {
     ProtoBuf.Class.Kind.CLASS -> ClassKind.CLASS
-    ProtoBuf.Class.Kind.TRAIT -> ClassKind.TRAIT
+    ProtoBuf.Class.Kind.TRAIT -> ClassKind.INTERFACE
     ProtoBuf.Class.Kind.ENUM_CLASS -> ClassKind.ENUM_CLASS
     ProtoBuf.Class.Kind.ENUM_ENTRY -> ClassKind.ENUM_ENTRY
     ProtoBuf.Class.Kind.ANNOTATION_CLASS -> ClassKind.ANNOTATION_CLASS