Add ir interpreter tests

compiler/testData/ir/interpreter/overrideDifferentName.kt

@@ -0,0 +1,14 @@
+@CompileTimeCalculation
+open class A {
+    open fun inc(i: Int) = i + 1
+}
+
+@CompileTimeCalculation
+class B(val b: Int) : A() {
+    override fun inc(j: Int): Int {
+        return j + b
+    }
+}
+
+const val a = A().<!EVALUATED: `11`!>inc(10)<!>
+const val b = B(10).<!EVALUATED: `21`!>inc(11)<!>