IDE testdata: s/trait/interface

idea/testData/diagnosticMessage/cannotInferVisibility.kt

@@ -1,12 +1,12 @@
 // !DIAGNOSTICS_NUMBER: 1
 // !DIAGNOSTICS: CANNOT_INFER_VISIBILITY
 
-trait T {
+interface T {
     internal val foo: String
 }
 
-trait U {
+interface U {
     protected val foo: String
 }
 
-trait V : T, U
+interface V : T, U

idea/testData/diagnosticMessage/differentNamesForSameParameter.kt

@@ -1,11 +1,11 @@
 // !DIAGNOSTICS_NUMBER: 1
 // !DIAGNOSTICS: DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES
 
-trait A {
+interface A {
     fun foo(x: Int)
 }
 
-trait B {
+interface B {
     fun foo(y: Int) {}
 }
 

idea/testData/diagnosticMessage/multipleDefaultsFromSupertypes.kt

@@ -1,11 +1,11 @@
 // !DIAGNOSTICS_NUMBER: 1
 // !DIAGNOSTICS: MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE
 
-trait C {
+interface C {
     fun foo(x: Int = 42)
 }
 
-trait D {
+interface D {
     fun foo(x: Int = 239) {}
 }
 

idea/testData/diagnosticMessage/typeMismatchWithNothing.kt

@@ -3,7 +3,7 @@
 
 package b
 
-trait A<T>
+interface A<T>
 
 fun infer<T>(a: A<T>) : T {}
 

idea/testData/diagnosticMessage/upperBoundViolated.kt

@@ -18,7 +18,7 @@ fun test2(a: Any, s: MutableSet<String>) {
 }
 
 //--------------
-trait A
+interface A
 class B
 
 fun baz<T: R, R: B>(t: T, r: R) where T: A {

idea/testData/diagnosticMessage/wrongReturnTypeInImplementation.kt

@@ -2,21 +2,21 @@
 // !DIAGNOSTICS: ABSTRACT_MEMBER_NOT_IMPLEMENTED
 // !MESSAGE_TYPE: TEXT
 
-trait T1
-trait T2 : T1
-trait T3 : T2
-trait T4 : T3
+interface T1
+interface T2 : T1
+interface T3 : T2
+interface T4 : T3
 
 
-trait A {
+interface A {
     fun f(): T1
 }
 
-trait B {
+interface B {
     fun f(): T2 = null!!
 }
 
-trait C {
+interface C {
     fun f(): T3
 }