Add ir interpreter tests

compiler/testData/ir/interpreter/collections/setOf.kt

@@ -0,0 +1,17 @@
+import kotlin.collections.*
+
+const val a1 = setOf(1, 2, 3).<!EVALUATED: `3`!>size<!>
+const val a2 = setOf(1, 2, 3, 3, 2, 1).<!EVALUATED: `3`!>size<!>
+const val b = emptySet<Int>().<!EVALUATED: `0`!>size<!>
+const val c = setOf<Int>().<!EVALUATED: `0`!>hashCode()<!>
+
+@CompileTimeCalculation
+fun getSum(set: Set<Int>): Int {
+    var sum: Int = 0
+    for (element in set) {
+        sum += element
+    }
+    return sum
+}
+
+const val sum = <!EVALUATED: `16`!>getSum(setOf(1, 3, 5, 7, 7, 5))<!>