JVM IR: (Un)mute tests and add more tests for bridge generation

compiler/testData/codegen/bytecodeText/interfaces/addedInterfaceBridge.kt

@@ -0,0 +1,19 @@
+interface A<T> {
+    fun f(x: T): T
+}
+
+open class B {
+    open fun f(x: String): String = x
+}
+
+open class C : B(), A<String>
+
+class D : C()
+
+fun box(): String {
+    return (D() as A<String>).f("OK")
+}
+
+// class D should not have an additional bridge
+// 1 public synthetic bridge f\(Ljava/lang/Object;\)Ljava/lang/Object;
+// 1 bridge