compiler testdata: s/trait/interface

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmOverloads/jvmOverloadsOnAbstractMethods.kt

@@ -1,4 +1,4 @@
-trait T {
+interface T {
     <!OVERLOADS_ABSTRACT!>@kotlin.jvm.overloads fun foo(s: String = "OK")<!>
 }
 

compiler/testData/diagnostics/testsWithStdLib/annotations/platformStatic/functions.kt

@@ -27,7 +27,7 @@ class A {
     }
 }
 
-trait B {
+interface B {
     companion object {
         <!PLATFORM_STATIC_NOT_IN_OBJECT!>platformStatic fun a1()<!> {
 

compiler/testData/diagnostics/testsWithStdLib/callableReference/function/abstractClassConstructors.kt

@@ -1,5 +1,5 @@
 // !DIAGNOSTICS: -UNUSED_EXPRESSION
-trait A
+interface A
 abstract class B
 annotation class C
 enum class D

compiler/testData/diagnostics/testsWithStdLib/callableReference/property/abstractPropertyViaSubclasses.kt

@@ -2,7 +2,7 @@
 
 import kotlin.reflect.KMemberProperty
 
-trait Base {
+interface Base {
     val x: Any
 }
 

compiler/testData/diagnostics/testsWithStdLib/native/override.kt

@@ -1,6 +1,6 @@
 import kotlin.jvm.*
 
-trait Base {
+interface Base {
     fun foo()
 }
 

compiler/testData/diagnostics/testsWithStdLib/native/trait.kt

@@ -1,6 +1,6 @@
 import kotlin.jvm.*
 
-trait Tr {
+interface Tr {
     <!NATIVE_DECLARATION_IN_TRAIT!>native fun foo()<!>
     <!NATIVE_DECLARATION_IN_TRAIT, NATIVE_DECLARATION_CANNOT_HAVE_BODY!>native fun bar()<!> {}