Add ir interpreter tests

compiler/testData/ir/interpreter/exceptions/multifileStackTrace.kt

@@ -0,0 +1,20 @@
+// FILE: main.kt
+
+@CompileTimeCalculation
+fun callToOtherFile(mustThrowException: Boolean, message: String): Int {
+    if (mustThrowException) throwException(message)
+    return 0
+}
+
+const val a = <!WAS_NOT_EVALUATED: `
+Exception java.lang.Exception: Exception from file1.kt
+	at File1Kt.throwException(file1.kt:19)
+	at MainKt.callToOtherFile(main.kt:5)
+	at MainKt.<clinit>(main.kt:9)`!>callToOtherFile(true, "Exception from file1.kt")<!>
+
+// FILE: file1.kt
+
+@CompileTimeCalculation
+fun throwException(message: String) {
+    throw Exception(message)
+}