Load special override as HIDDEN in case of signature clash

#KT-10151 Fixed

compiler/testData/diagnostics/tests/j+k/collectionOverrides/containsAndOverload.kt

@@ -7,8 +7,8 @@ abstract public class A implements java.util.Collection<String> {
 }
 
 // FILE: main.kt
-abstract class KA: A() {
-    override fun contains(x: String) = false
+abstract class <!CONFLICTING_JVM_DECLARATIONS!>KA<!> : A() {
+    <!CONFLICTING_JVM_DECLARATIONS!>override fun contains(x: String)<!> = false
 }
 
 fun foo(a: A, ka: KA) {