replace 'trait' keyword with 'interface' in user-visible messages and code generation tools

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmOverloads/JvmOverloadWithNoDefaults.txt

@@ -1,4 +1,4 @@
-package 
+package
 
 internal final class C {
     kotlin.jvm.overloads() public constructor C()

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

@@ -8,7 +8,7 @@ internal abstract class C {
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
 }
 
-internal trait T {
+internal interface T {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     kotlin.jvm.overloads() internal abstract fun foo(/*0*/ s: kotlin.String = ...): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmOverloads/jvmOverloadsOnPrivate.txt

@@ -1,4 +1,4 @@
-package 
+package
 
 internal fun foo(): kotlin.Unit
 

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

@@ -25,7 +25,7 @@ internal final class A {
     }
 }
 
-internal trait B {
+internal interface B {
     kotlin.platform.platformStatic() internal open fun a4(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

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

@@ -2,7 +2,7 @@ package
 
 internal fun main(): kotlin.Unit
 
-internal trait A {
+internal interface A {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String

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

@@ -18,7 +18,7 @@ internal open class B : Base {
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
 }
 
-internal trait Base {
+internal interface Base {
     internal abstract val x: kotlin.Any
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

compiler/testData/diagnostics/testsWithStdLib/classLiteral/arrays.txt

@@ -1,4 +1,4 @@
-package 
+package
 
 internal val a01: [ERROR : Unresolved class]
 internal val a02: kotlin.reflect.KClass<kotlin.Array<[ERROR : Array]>>

compiler/testData/diagnostics/testsWithStdLib/duplicateJvmSignature/jvmOverloads.txt

@@ -1,4 +1,4 @@
-package 
+package
 
 internal final class A {
     public constructor A()

compiler/testData/diagnostics/testsWithStdLib/kotlinSignature/parameterNames.txt

@@ -2,7 +2,7 @@ package
 
 public/*package*/ /*synthesized*/ fun A(/*0*/ function: (kotlin.String!) -> kotlin.Unit): A
 
-public/*package*/ trait A {
+public/*package*/ interface A {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public abstract fun foo(/*0*/ kotlinSignatureName: kotlin.String!): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

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

@@ -1,6 +1,6 @@
 package
 
-internal trait Base {
+internal interface Base {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     internal abstract fun foo(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int

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

@@ -1,6 +1,6 @@
 package
 
-internal trait Tr {
+internal interface Tr {
     kotlin.jvm.native() internal open fun bar(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     kotlin.jvm.native() internal abstract fun foo(): kotlin.Unit