Add ir interpreter tests

compiler/testData/ir/interpreter/generatedStdlib/first.kt

@@ -0,0 +1,11 @@
+import kotlin.*
+import kotlin.collections.*
+import kotlin.text.*
+
+const val a = "abcs".<!EVALUATED: `a`!>first()<!>
+const val b = UIntArray(3) { it.toUInt() }.<!EVALUATED: `0`!>first()<!>
+const val c = <!EVALUATED: `1`!>listOf(1, "2", 3.0).first() as Int<!>
+const val d = listOf<Int>().<!WAS_NOT_EVALUATED: `
+Exception java.util.NoSuchElementException: List is empty.
+	at CollectionsKt.kotlin.collections.first(Collections.kt:88)
+	at FirstKt.<clinit>(first.kt:8)`!>first()<!>