[Test] Update testdata of diagnostic tests during to change language to 1.5

Mostly this commit contains changes of descriptor dump of sealed classes
  tests according to changed visibility of sealed class constructor

compiler/testData/diagnostics/tests/sealed/TreeWhenFunctionalNoIs.txt

@@ -1,7 +1,7 @@
 package
 
 public sealed class Tree {
-    private constructor Tree()
+    internal constructor Tree()
     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 final fun max(): kotlin.Int
@@ -42,3 +42,4 @@ public sealed class Tree {
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
     }
 }
+