K2 (minor): fix modality in tests from d8a20f19

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/genericGetterForJavaOverriddenProperty.fir.txt

@@ -1,5 +1,5 @@
 FILE: test.kt
-    public final class Base : R|kotlin/Any| {
+    public open class Base : R|kotlin/Any| {
         public constructor(x: R|kotlin/Any|): R|Base| {
             super<R|kotlin/Any|>()
         }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/genericGetterForJavaOverriddenProperty.kt

@@ -8,7 +8,7 @@ public class Some extends Base {
 
 // FILE: test.kt
 
-class Base(val x: Any) {
+open class Base(val x: Any) {
     fun <T> getFoo(): T = x <!UNCHECKED_CAST!>as T<!>
 }
 

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/genericGetterForJavaOverriddenProperty2.fir.txt

@@ -1,5 +1,5 @@
 FILE: test.kt
-    public final class Base : R|kotlin/Any| {
+    public open class Base : R|kotlin/Any| {
         public constructor(foo: R|kotlin/Any|): R|Base| {
             super<R|kotlin/Any|>()
         }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/genericGetterForJavaOverriddenProperty2.kt

@@ -8,7 +8,7 @@ public class Some extends Base {
 
 // FILE: test.kt
 
-class Base(internal val foo: Any) {
+open class Base(internal val foo: Any) {
     fun <T> getFoo(): T = foo <!UNCHECKED_CAST!>as T<!>
 }