compiler testdata: s/trait/interface

compiler/testData/diagnostics/tests/inference/nestedCalls/binaryExpressions.kt

@@ -1,10 +1,10 @@
 package h
 
-trait A<T> {}
+interface A<T> {}
 
 fun <T> newA(): A<T> = throw Exception()
 
-trait Z
+interface Z
 
 fun <T> id(t: T): T = t
 

compiler/testData/diagnostics/tests/inference/nestedCalls/completeNestedForVariableAsFunctionCall.kt

@@ -1,6 +1,6 @@
 package j
 
-trait MyFunc<T> {}
+interface MyFunc<T> {}
 
 class A(val b: B) {
 }

compiler/testData/diagnostics/tests/inference/nestedCalls/makeNullableIfSafeCall.kt

@@ -1,11 +1,11 @@
 package a
 
-trait A {
+interface A {
     val b: B
     val nb: B?
 }
 
-trait B {
+interface B {
     fun foo(): Int
 }