Load special override as HIDDEN in case of signature clash

#KT-10151 Fixed

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

@@ -0,0 +1,22 @@
+// FILE: CharBuffer.java
+
+public class CharBuffer implements CharSequence {
+    public final int length() {
+        return 0;
+    }
+
+    public final char charAt(int index) {
+        return get(position() + checkIndex(index, 1));
+    }
+
+    // The key problem here is that `get` has the same signature as kotlin.CharSequence.get but completely different semantics
+    public abstract char get(int index);
+    public abstract CharBuffer subSequence(int start, int end);
+}
+
+// FILE: main.kt
+
+fun test(cb: CharBuffer) {
+    cb.get(0)
+    (cb as CharSequence).get(0)
+}