compiler testdata: s/trait/interface

compiler/testData/diagnostics/tests/declarationChecks/FunctionWithMissingNames.kt

@@ -1,6 +1,6 @@
 annotation class a
-trait A
-trait B
+interface A
+interface B
 
 <!FUNCTION_DECLARATION_WITH_NO_NAME, CONFLICTING_OVERLOADS!>fun ()<!> {}
 <!FUNCTION_DECLARATION_WITH_NO_NAME, CONFLICTING_OVERLOADS!>fun A.()<!> {}

compiler/testData/diagnostics/tests/declarationChecks/ambiguousObjectExpressionType.kt

@@ -1,4 +1,4 @@
-trait MyTrait {
+interface MyTrait {
   fun f1() {}
 }
 

compiler/testData/diagnostics/tests/declarationChecks/illegalModifiersOnClass.kt

@@ -15,5 +15,5 @@
 <!ILLEGAL_MODIFIER!>final<!> object B4 {}
 
 <!ILLEGAL_MODIFIER!>override<!> enum class C {}
-<!ILLEGAL_MODIFIER!>override<!> trait D {}
+<!ILLEGAL_MODIFIER!>override<!> interface D {}
 <!ILLEGAL_MODIFIER!>override<!> annotation class E

compiler/testData/diagnostics/tests/declarationChecks/kt1141.kt

@@ -2,7 +2,7 @@
 
 package kt1141
 
-public trait SomeTrait {
+public interface SomeTrait {
     fun foo()
 }
 

compiler/testData/diagnostics/tests/declarationChecks/kt2397.kt

@@ -1,7 +1,7 @@
 //KT-2397 Prohibit final methods in traits with no implementation
 package a
 
-trait T {
+interface T {
     <!FINAL_FUNCTION_WITH_NO_BODY!>final<!> fun foo()
     <!FINAL_PROPERTY_IN_TRAIT!>final<!> val b : Int