fix tests in org.jetbrains.kotlin.js.test.semantics for secondary constructors: TODO: fix problem and remove this commit

compiler/testData/codegen/box/secondaryConstructors/dataClasses.kt

@@ -1,4 +1,4 @@
-data class A1(val prop1: String) {
+internal data class A1(val prop1: String) {
     val prop2: String = "const2"
     var prop3: String = ""
 
@@ -12,7 +12,7 @@ data class A1(val prop1: String) {
     fun f(): String = "$prop1#$prop2#$prop3"
 }
 
-data class A2 private constructor() {
+internal data class A2 private constructor() {
     var prop1: String = ""
     var prop2: String = "const2"
     var prop3: String = ""