Append newline to EOF for .txt test data files

Reverts and fixes 102f0d3

compiler/testData/diagnostics/tests/labels/kt1703.txt

@@ -2,4 +2,4 @@ package
 
 internal fun test(): kotlin.Unit
 internal fun use(/*0*/ a: kotlin.Any?): kotlin.Any?
-internal fun </*0*/ T> kotlin.Array<out T>.forEach(/*0*/ operation: (T) -> kotlin.Unit): kotlin.Unit
+internal fun </*0*/ T> kotlin.Array<out T>.forEach(/*0*/ operation: (T) -> kotlin.Unit): kotlin.Unit

compiler/testData/diagnostics/tests/labels/kt361.txt

@@ -1,3 +1,3 @@
 package
 
-internal fun nonlocals(/*0*/ b: kotlin.Boolean): kotlin.Unit
+internal fun nonlocals(/*0*/ b: kotlin.Boolean): kotlin.Unit

compiler/testData/diagnostics/tests/labels/kt3920.txt

@@ -1,4 +1,4 @@
 package
 
 internal fun </*0*/ T> run(/*0*/ f: () -> T): T
-internal fun test(): kotlin.Unit
+internal fun test(): kotlin.Unit

compiler/testData/diagnostics/tests/labels/kt3988.txt

@@ -18,4 +18,4 @@ internal final class Comment2 {
     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/tests/labels/kt4247.txt

@@ -1,3 +1,3 @@
 package
 
-internal fun foo(/*0*/ bar1: (kotlin.String.() -> kotlin.Int) -> kotlin.Int): kotlin.Unit
+internal fun foo(/*0*/ bar1: (kotlin.String.() -> kotlin.Int) -> kotlin.Int): kotlin.Unit

compiler/testData/diagnostics/tests/labels/kt4586.txt

@@ -1,4 +1,4 @@
 package
 
 internal val str: kotlin.String
-internal fun string(/*0*/ init: java.lang.StringBuilder.() -> kotlin.Unit): kotlin.String
+internal fun string(/*0*/ init: java.lang.StringBuilder.() -> kotlin.Unit): kotlin.String

compiler/testData/diagnostics/tests/labels/kt4603.txt

@@ -1,3 +1,3 @@
 package
 
-internal fun foo(): kotlin.Unit
+internal fun foo(): kotlin.Unit

compiler/testData/diagnostics/tests/labels/kt591.txt

@@ -1,3 +1,3 @@
 package
 
-internal fun test(): kotlin.Unit
+internal fun test(): kotlin.Unit

compiler/testData/diagnostics/tests/labels/labelReferencesInsideObjectExpressions.txt

@@ -15,4 +15,4 @@ internal trait B {
     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/tests/labels/labelsMustBeNamed.txt

@@ -19,4 +19,4 @@ internal final class B : A {
     internal final override /*1*/ /*fake_override*/ fun foo(): kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
-}
+}