Append newline to EOF for .txt test data files

Reverts and fixes 102f0d3

compiler/testData/loadJava/compiledKotlin/fromLoadJava/objectMembers.txt

@@ -8,4 +8,4 @@ internal object SomeObject {
         /*primary*/ private constructor <class-object-for-SomeObject>()
         internal final override /*1*/ /*fake_override*/ fun test(/*0*/ a: kotlin.Int): kotlin.Int
     }
-}
+}