[Tests] Migrate backend-independent tests from native to compiler/testData.

^KT-65979

compiler/testData/codegen/box/escapeAnalysis/test2.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// TODO: check mentioned debug output of escape analyser
+
+class A(val s: String)
+
+// ----- Agressive -----
+// PointsTo:
+//     RET.v@lue -> P0.s
+// Escapes:
+// ----- Passive -----
+// PointsTo:
+//     RET.v@lue -> P0.s
+// Escapes:
+fun foo(a: A) = a.s
+
+fun box(): String = foo(A("OK"))