compiler testdata: s/trait/interface

compiler/testData/recursiveProcessor/declarations.kt

@@ -4,7 +4,7 @@ fun <T1> T1.func(a: T1): T1 = a
 val <T2> T2.prop: T2? = null
 var propVar: Any? = null
 
-trait Trait<T3> {
+interface Trait<T3> {
     fun traitFunc(): Unit {}
     val traitProp: Any?
 }
@@ -24,8 +24,8 @@ object Object {
     val objProp: Any? = null
 }
 
-trait Outer {
-    trait NestedTrait {
+interface Outer {
+    interface NestedTrait {
         fun nestedTraitFun() {}
     }