compiler testdata: s/trait/interface

compiler/testData/writeFlags/class/accessFlags/publicInnerInterface.kt

@@ -1,5 +1,5 @@
 public class Foo() {
-   public trait MyTrait {
+   public interface MyTrait {
    }
 }
 

compiler/testData/writeFlags/class/accessFlags/publicInterface.kt

@@ -1,4 +1,4 @@
-public trait MyTrait {
+public interface MyTrait {
 }
 
 // TESTED_OBJECT_KIND: class