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

^KT-65979

compiler/testData/codegen/box/inline/classDeclarationInsideInline.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2010-2018 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.
+ */
+// KT-54635: Kotlin/JS cannot distinguish between Int and Double at runtime
+// AssertionError: Expected <test1: 1.0>, actual <test1: 1>
+// IGNORE_BACKEND: JS_IR, JS_IR_ES6
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun box(): String {
+    run {
+        class Test1<T : Number, G>(val x: T, val y: G) {
+            override fun toString() = "test1: ${x.toDouble()}"
+        }
+
+        class Test2<X>(val a: Test1<Int, X>) {
+            override fun toString() = "test2"
+        }
+
+        val v = Test2(Test1(1, Test2(Test1(1, 3))))
+        assertEquals("test1: 1.0", v.a.toString())
+        assertEquals("1", v.a.x.toString())
+        assertEquals("test2", v.a.y.toString())
+    }
+    return "OK"
+}