Fix exception when reporting WRONG_TYPE_PARAMETER_NULLABILITY_FOR_JAVA_OVERRIDE

^KT-51979 Fixed

compiler/testData/diagnostics/tests/j+k/types/noOverrideKeyword.fir.kt

@@ -0,0 +1,14 @@
+// !SKIP_JAVAC
+// SKIP_TXT
+// !LANGUAGE: -ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated
+// FILE: JavaInterface.java
+import org.jetbrains.annotations.NotNull;
+
+public interface JavaInterface<V> {
+    void interfaceMethod(@NotNull V value);
+}
+
+// FILE: main.kt
+interface KotlinInterface<X> : JavaInterface<X> {
+    override <!SYNTAX!><<!><!SYNTAX!>T<!><!SYNTAX!>><!> fun interfaceMethod(x: X)
+}

compiler/testData/diagnostics/tests/j+k/types/noOverrideKeyword.kt

@@ -0,0 +1,14 @@
+// !SKIP_JAVAC
+// SKIP_TXT
+// !LANGUAGE: -ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated
+// FILE: JavaInterface.java
+import org.jetbrains.annotations.NotNull;
+
+public interface JavaInterface<V> {
+    void interfaceMethod(@NotNull V value);
+}
+
+// FILE: main.kt
+interface KotlinInterface<X> : JavaInterface<X> {
+    override <!SYNTAX!><<!><!SYNTAX!>T<!><!SYNTAX!>><!> fun <!VIRTUAL_MEMBER_HIDDEN!>interfaceMethod<!>(x: X)
+}