[FIR-TEST] Add new testdata generated after changes in previous commit

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

@@ -0,0 +1,24 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE -PARAMETER_NAME_CHANGED_ON_OVERRIDE
+
+// FILE: A.java
+abstract public class A implements java.util.Collection<String> {
+    public boolean contains(Object x) {return false;}
+    public boolean contains(String x) {return false;}
+}
+
+// FILE: main.kt
+abstract class KA : A() {
+    override fun contains(x: String) = false
+}
+
+fun foo(a: A, ka: KA) {
+    a.contains("")
+    a.contains(1)
+    "" in a
+    1 in a
+
+    ka.contains("")
+    ka.contains(1)
+    "" in ka
+    1 in ka
+}