IDE testdata: s/trait/interface

idea/testData/refactoring/extractFunction/controlFlow/initializer/valueUsedInAnonymousObject.kt

@@ -6,6 +6,6 @@ fun main(args: Array<String>) {
     }
 }
 
-trait T {
+interface T {
     fun foo(n: Int): Int
 }

idea/testData/refactoring/extractFunction/controlFlow/initializer/valueUsedInAnonymousObject.kt.after

@@ -11,6 +11,6 @@ private fun i(): Int {
     return a
 }
 
-trait T {
+interface T {
     fun foo(n: Int): Int
 }

idea/testData/refactoring/extractFunction/controlFlow/unextractable/anonymousObject.kt

@@ -1,4 +1,4 @@
-trait Callable<T> {
+interface Callable<T> {
     fun call(): T
 }