[FIR] Supertype and inheritance checkers group

compiler/fir/analysis-tests/testData/resolve/diagnostics/methodOfAnyImplementedInInterface.kt

@@ -0,0 +1,25 @@
+interface A {
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override fun toString() = "Hello"<!>
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override fun equals(other: Any?) = true<!>
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override fun hashCode(): Int {
+        return 42;
+    }<!>
+}
+
+interface B {
+    override fun toString(): String
+    override fun equals(other: Any?): Boolean
+    override fun hashCode(): Int
+}
+
+interface C {
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override operator fun toString(): String = "Rest"<!>
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override operator fun equals(other: Any?): Boolean = false<!>
+    <!ANY_METHOD_IMPLEMENTED_IN_INTERFACE!>override operator fun hashCode(): Int = 2<!>
+}
+
+interface D {
+    override operator fun toString(): String
+    override operator fun equals(other: Any?): Boolean
+    override operator fun hashCode(): Int
+}